Tuesday, January 14, 2025

Guest Bread

Sourdough Country Loaf Recipe

[A friend baked these enticing loaves [Image is hers]. I asked for the recipe which she gave as an image. I was curious as to how much work it would be to turn that into a proper recipe web page. This is pretty much what ChatGPT came up with, so this is more instructional about how well you can convert a recipe rather than a recipe itself. I haven't tried it or it would be on my recipes site.]

This sourdough country loaf is the perfect way to enjoy the rich, complex flavors of sourdough bread. Follow these steps to bake a delightful loaf!

Ingredients

Making the Levain

  • 200 gm Flour
  • 200 gm Warm water
  • 100 gm Bistro '67 sourdough starter

Tip: You’ll have some leftover sourdough starter and levain. Keep the starter in the fridge and feed it weekly with equal parts all-purpose or bread flour and warm water.

Sourdough Country Loaf

  • 1000 gm Flour
  • 650 gm Warm water
  • 200 gm Levain
  • 20 gm Salt

Instructions

  1. Mix the levain in 600 gm of water, reserving 50 gm of water to mix with the salt later.
  2. Ensure the levain is well-dispersed in the water.
  3. Add the flour and mix until no dry spots remain. Let the dough rest for 45 minutes.
  4. Add the salt and the reserved 50 gm of water. Squeeze the dough between your fingers to incorporate the salt. Rest for another 45 minutes.
  5. Fold the dough on itself and turn it 45 degrees, repeating for a total of four folds.
  6. Repeat the folding process four times, with 45-minute rests in between. Keep the dough covered while resting.
  7. Divide the dough into two portions and let them rest for 20 minutes.
  8. Shape the dough as desired. Watch Chef Raul Sojo’s sourdough video for guidance!
  9. Proof the dough until you can press it gently with a finger and it springs back slowly.
  10. Bake immediately or rest the dough overnight in the fridge for enhanced flavor.
  11. Bake at 400°F (200°C) until the internal temperature reaches 200–210°F (93–99°C).

Wednesday, December 25, 2024

Chandra X-ray Observatory

25 Years of Visionary Science: Chandra X-ray Observatory

Since its launch in July 1999, NASA's Chandra X-ray Observatory has revolutionized our understanding of the high-energy universe. To celebrate its 25th anniversary, NASA released 25 stunning images showcasing phenomena such as black holes, supernova remnants, and galaxy clusters.

Featured Images:

Cassiopeia A

A supernova remnant located about 11,000 light-years away, offering insights into the explosive deaths of massive stars.

Cassiopeia A

Crab Nebula

The result of a supernova explosion observed in 1054 AD, featuring a rapidly spinning neutron star at its center.

Crab Nebula

Centaurus A

A galaxy with a supermassive black hole at its core, emitting powerful jets of high-energy particles.

Centaurus A

M82 (Cigar Galaxy)

A starburst galaxy undergoing intense star formation, with numerous X-ray sources indicating high-energy processes.

M82 Galaxy

Perseus Cluster

A galaxy cluster displaying vast clouds of hot gas and evidence of sound waves propagating through the intracluster medium.

Perseus Cluster

Th

Friday, November 15, 2024

Did Lord Chesterfield Use a Secretary?

Question: Lord Chesterfield's Prolific Correspondence – Did He Use a Secretary?

I am incredibly impressed by the verbosity and volume of text produced by Lord Chesterfield as seen in this book of letters to his son. Given that these would have originated as hand-written correspondence, and considering the nature of the presumed author and other correspondents implied by the text of the letters, it seems improbable that Lord Chesterfield would have manually written the finished letters by himself. I would presume that he would have a secretary or secretaries taking down his verbal dictation of the letters and subsequently editing and finishing them before they were sent. Is there any historical evidence of this type of thing happening with respect to correspondence in the Eighteenth Century?

Answer:

Yes, you’re correct in suspecting that the prolific and polished correspondence of an 18th-century aristocrat like Lord Chesterfield was unlikely to have been entirely handwritten by himself. In that era, it was common for prominent figures, especially those of Chesterfield’s standing, to employ secretaries, amanuenses, or scribes to assist with their correspondence.

Historical Context of 18th-Century Correspondence

  1. Secretarial Assistance: Many aristocrats, politicians, and authors employed secretaries who handled much of their written output. A secretary would often take down dictation, sometimes verbatim, but in many cases, they also acted as editors, refining the prose before the final version was sent out. This was particularly true for long, elaborate letters, where the content needed to reflect the polish and wit expected of the sender.
  2. Dictation as Common Practice: It was typical for people like Lord Chesterfield to dictate letters. The process involved speaking aloud to a secretary, who would write down the initial draft. The author might review and make corrections, but much of the labor of writing, especially for lengthy correspondence, was delegated.
  3. Editing and Drafting: Secretaries often played a role beyond simple transcription. They could edit for grammar, style, and clarity. While the thoughts and arguments were the author's, the final text might be smoothed out by the secretary. Given Chesterfield’s reputation for eloquence and precision, it’s reasonable to assume he would have had high expectations for the quality of his letters, potentially requiring multiple drafts.
  4. Evidence from Chesterfield’s Own Letters: While specific records of Chesterfield’s secretarial staff might not be abundant, it’s known that he was deeply involved in politics and public life, leaving him little time for laborious writing tasks. Additionally, his letters reflect a level of polish that suggests more than just off-the-cuff writing. Chesterfield's instructions to his son also indicate an appreciation for clear, concise writing — something that might have involved collaboration with a skilled secretary.

Broader Evidence of Secretarial Roles

  • Alexander Pope and other writers of the period also employed secretaries or assistants for their correspondence, especially in later life when writing by hand became more difficult.
  • Samuel Pepys, a contemporary figure, had several clerks who helped with his voluminous work, though he was known to be very particular about his records.
  • Horace Walpole, another prolific letter writer of the 18th century, often used secretaries, particularly later in life when his eyesight began to fail.

Conclusion

It’s very plausible that Lord Chesterfield dictated much of his correspondence, particularly letters to his son, and relied on secretarial support for drafting, editing, and copying the final versions. The polished nature and sheer volume of his letters align well with the practices of the time, where secretarial assistance was a standard part of managing the daily flow of correspondence for a busy aristocrat.

Tuesday, September 24, 2024

Tetris Written By ChatGPT

This is a test to see how well the latest version of ChatGPT can write an example program that will run in a web page. It may not be pretty, but it works!

Client Network Size

Bob:

I am trying to get a ballpark estimate of the aggregate capacity of the world's client machines as opposed to the world's data centers both in the aggregate and the median data center. I'm not having much luck. Can you review what you know and the answers here from other AIs and try to give me an answer? I am, at the end, particularly concerned as to whether or not I can get the cooperation of a large number of clients such that they form the largest system.

ChatGPT:

Estimating the aggregate CPU, GPU, RAM, and storage capacity of the world's client machines versus data centers is indeed a complex task. However, based on available data up to my knowledge cutoff in October 2023, I can provide a rough estimate and comparison.


Aggregate Capacity of Client Machines

1. Number of Devices

  • Smartphones: Approximately 6.5 billion in use globally.
  • Personal Computers (Desktops and Laptops): Approximately 1.5 billion.
  • Tablets: Approximately 1 billion.

Total client devices: ~9 billion.

2. Average Specifications

Smartphones

  • CPU: Quad-core CPUs at ~2 GHz.
  • RAM: 4 GB.
  • Storage: 64 GB.

Personal Computers

  • CPU: Quad-core CPUs at ~2.5 GHz.
  • RAM: 8 GB.
  • Storage: 256 GB.

Tablets

  • CPU: Quad-core CPUs at ~1.5 GHz.
  • RAM: 2 GB.
  • Storage: 32 GB.

3. Aggregate CPU Capacity

Estimating CPU capacity in terms of cores:

  • Smartphones: 6.5 billion devices × 4 cores = 26 billion cores.
  • Personal Computers: 1.5 billion devices × 4 cores = 6 billion cores.
  • Tablets: 1 billion devices × 4 cores = 4 billion cores.

Total CPU Cores: 36 billion cores.

Note: While client devices have more cores in total, each core is generally less powerful than those in data centers.

4. Aggregate RAM Capacity

  • Smartphones: 6.5 billion × 4 GB = 26 exabytes.
  • Personal Computers: 1.5 billion × 8 GB = 12 exabytes.
  • Tablets: 1 billion × 2 GB = 2 exabytes.

Total RAM: 40 exabytes.

5. Aggregate Storage Capacity

  • Smartphones: 6.5 billion × 64 GB = 416 exabytes.
  • Personal Computers: 1.5 billion × 256 GB = 384 exabytes.
  • Tablets: 1 billion × 32 GB = 32 exabytes.

Total Storage: 832 exabytes.


Aggregate Capacity of Data Centers

1. Number of Servers

  • Approximately 100 million physical servers in data centers worldwide.

2. Average Specifications

  • CPU: 16 cores per server (some have more).
  • RAM: 128 GB per server.
  • Storage: Local storage of 8 TB per server, plus access to large-scale storage systems.

3. Aggregate CPU Capacity

  • Total CPU Cores: 100 million servers × 16 cores = 1.6 billion cores.

4. Aggregate RAM Capacity

  • 100 million servers × 128 GB = 12.8 exabytes.

5. Aggregate Storage Capacity

Server Local Storage

  • 100 million servers × 8 TB = 800 exabytes.

Data Center Total Storage

  • Including large-scale storage systems (SAN, NAS, cloud storage), data centers collectively hold several zettabytes (1 zettabyte = 1,000 exabytes) of storage.

Comparison

CPU Cores

  • Client Devices: 36 billion cores.
  • Data Centers: 1.6 billion cores.

Analysis: Client devices have a significantly higher total number of CPU cores. However, data center CPUs are generally more powerful per core, with higher instruction per clock (IPC) rates and optimized for performance.

RAM

  • Client Devices: 40 exabytes.
  • Data Centers: 12.8 exabytes.

Analysis: Client devices collectively have more RAM, but data centers utilize RAM more efficiently due to high-speed networks and optimized workloads.

Storage

  • Client Devices: 832 exabytes.
  • Data Centers: Several zettabytes.

Analysis: Data centers, when accounting for centralized storage systems, likely surpass client devices in total storage capacity.

GPU Capacity

Estimating GPU capacity is challenging due to variability, but here's an approximation:

Client Devices

  • Personal Computers with Dedicated GPUs: Assuming 30% of PCs have dedicated GPUs:

    • 1.5 billion PCs × 30% = 450 million GPUs.
    • Average performance: 1 TFLOPS per GPU.
    • Total GPU Capacity: 450 exaFLOPS (450 million TFLOPS).
  • Smartphones and Tablets: Have integrated GPUs, generally low-performance, contributing marginally to total GPU capacity.

Data Centers

  • Servers with High-Performance GPUs: Used for AI, rendering, scientific computations.

    • Assuming 10 million servers with GPUs.
    • Average performance: 10 TFLOPS per GPU (e.g., NVIDIA Tesla, A100).
    • Total GPU Capacity: 100 exaFLOPS (10 million × 10 TFLOPS).

Analysis: While client devices have a higher number of GPUs, data center GPUs are significantly more powerful and optimized for high-performance tasks.


Feasibility of Leveraging Client Devices

You are interested in whether you can harness the aggregate capacity of client devices to form the largest system. Here are considerations:

Advantages

  • Massive Scale: Billions of devices offer substantial cumulative resources.
  • Cost Efficiency: Utilizing existing hardware avoids capital expenditure on new infrastructure.

Challenges

  1. Heterogeneity: Variability in hardware, operating systems, and performance complicates software deployment and optimization.

  2. Availability and Reliability: Client devices may not be always online or may have intermittent connectivity.

  3. Security and Privacy: Users may be reluctant to allow third-party computations on their devices due to security concerns.

  4. Bandwidth Limitations: Network speeds and latency vary widely, impacting data transfer and synchronization.

  5. Energy Consumption: Intensive computations can drain battery-powered devices, discouraging user participation.

  6. Management Overhead: Coordinating tasks across millions or billions of devices requires sophisticated algorithms and infrastructure.

Precedents

  • Distributed Computing Projects: Examples like SETI@home, Folding@home, and BOINC demonstrate the viability of harnessing client devices for specific computational tasks.

    • Folding@home: Achieved over 1.5 exaFLOPS during the COVID-19 pandemic by utilizing volunteer computing resources.

Strategies for Success

  • Incentivization: Offer rewards, recognition, or other incentives to encourage participation.

  • Security Measures: Implement strong security protocols to protect user data and maintain trust.

  • Ease of Use: Provide simple installation and minimal impact on device performance.

  • Selective Task Allocation: Assign tasks suitable for client devices, such as low-bandwidth, asynchronous computations.


Conclusion

  • Aggregate Capacity: Client devices have a higher total number of CPU cores and more RAM, but data centers have greater computational power due to more powerful hardware and optimized infrastructure.

  • Data Centers' Strengths:

    • Performance: Higher per-core performance and specialized hardware (e.g., GPUs, TPUs).
    • Reliability: Controlled environments with redundant systems.
    • Efficiency: Optimized for parallel processing and high-throughput workloads.
  • Client Devices' Potential:

    • Scalability: Access to billions of devices offers unparalleled scale.
    • Community Engagement: Projects can engage users in meaningful contributions to scientific research or other endeavors.

Recommendations

If you plan to leverage client devices:

  1. Define Clear Objectives: Ensure tasks are suitable for distributed computation across heterogeneous devices.

  2. Develop Robust Software: Create applications that can handle device variability and network instability.

  3. Prioritize Security: Protect user data and provide transparency about how resources are used.

  4. Optimize for Minimal Impact: Allow users to set preferences for resource usage (e.g., only when idle, limit CPU usage).

  5. Build a Community: Foster a sense of collaboration and purpose among participants.


Final Thoughts

While the aggregate capacity of client devices is enormous, effectively utilizing it requires overcoming significant technical and logistical challenges. Data centers remain the backbone of high-performance computing due to their optimized environments and hardware. However, with careful planning and execution, distributed computing projects leveraging client devices can achieve remarkable results and contribute meaningfully to various fields.


References

  • IDC, Gartner, and Statista reports on global device usage.
  • Specifications from leading CPU and GPU manufacturers.
  • Data from distributed computing projects like Folding@home.
  • Industry analyses on data center capacities and trends.

Please let me know if you need further details or assistance with specific aspects of this topic.

Thursday, September 19, 2024

Bringing opposing parties together

To truly bring people together from political and social extremes, we must first focus on deradicalizing
our own perspectives. It’s essential to set aside our differences and find common ground where we can work together. Whether someone leans left or right, or identifies as authoritarian or libertarian, it’s crucial to treat everyone with courtesy and respect. Strongly held beliefs, no matter their merits, deserve acknowledgment and understanding.

Most of us share common values and goals, and that’s what we should concentrate on. It’s important to recognize that not everyone will be receptive to education on every topic, and some may not be interested in certain issues. However, we need to engage them in a way that helps shift the political landscape in a positive direction.To do this effectively, we can employ various strategies to make participation enjoyable, inclusive, and personally rewarding. Here are some ideas for communicating this vision to someone who is eager to make a difference but may struggle with an efficient approach:
  1. Focus on Shared Values: Start conversations by identifying common interests and values that resonate with everyone involved. This foundation creates a sense of unity and encourages collaboration.
  2. Encourage Open Dialogue: Foster an environment where people feel safe to express their views without fear of judgment. Encourage active listening and empathy, allowing for respectful exchanges of ideas.
  3. Make it Fun: Organize events or activities that are enjoyable and engaging, such as community projects, workshops, or social gatherings. When people have fun while collaborating, they’re more likely to build connections and find common cause.
  4. Celebrate Small Wins: Acknowledge and celebrate progress, no matter how small. Recognizing achievements can motivate others and reinforce the idea that working together is both effective and rewarding.
  5. Create Inclusive Spaces: Ensure that everyone feels welcome and valued in discussions or activities. Inclusivity fosters a sense of belonging, making individuals more willing to participate and share their perspectives.
  6. Share Personal Stories: Encourage individuals to share their experiences and how they relate to broader issues. Personal narratives can bridge gaps and foster understanding across differing viewpoints.
By emphasizing these approaches, we can help guide enthusiastic individuals toward a more effective way of promoting collaboration and understanding. Together, we can create a movement that prioritizes finding common ground and working towards shared goals, making the journey enjoyable and fulfilling for everyone involved.

Setting up on Blogger

How to Set Up a Blogger Account

  1. Create a Google Account:
    • If you don’t already have a Google account, go to Google Account Creation and follow the prompts to create one. You’ll need this to access Blogger.
  2. Sign in to Blogger:
    • Visit Blogger.com and sign in using your Google account credentials.
  3. Create a New Blog:
    • Once signed in, you’ll see a dashboard. Click on the “Create New Blog” button.
    • A pop-up window will appear where you can enter your blog title, choose a blog address (URL), and select a theme. Make sure your blog address is unique and reflects your blog’s content.
  4. Choose a Theme:
    • Select a theme that you like. You can customize it later, so don’t worry too much about getting it perfect right away.

  5. Start Writing Your First Post
    :
    • After creating your blog, you’ll be taken to the dashboard. Click on “New Post” to start writing your first blog entry.
    • Use the editor to format your text, add images, and include links. Once you’re happy with your post, click “Publish” to share it with the world!
  6. Customize Your Blog:
    • Explore the “Theme” and “Layout” options in the dashboard to customize the look and feel of your blog. You can add gadgets, change colors, and adjust the layout to suit your style.
  7. Promote Your Blog:
    • Share your blog posts on social media and with friends to start building an audience. Engaging with readers through comments can also help foster a community around your blog.
  8. Keep Posting:
    • Consistency is key! Try to post regularly to keep your audience engaged and to develop your writing skills.
By following these steps, you’ll be well on your way to creating your own blog on Blogger. Enjoy the process of sharing your thoughts and connecting with others!

Guest Bread