An AI chatbot named ChatGPT has been getting a tremendous amount of publicity lately, and a boggling amount of what I consider unwarranted acceptance, bordering on the ridiculous. No, alas. That border is now behind us: Buzzfeed will soon begin using ChatGPT to generate content for their sites, which include the Huffington Post. The source is a paywalled article in the Wall Street Journal, or I’d post a link. Doesn’t matter. Buzzfeed is clearly trying to replace human writers with an AI. Their investors evidently think it’s a good idea, given that the Buzzfeed stock price rose 92% later that day. I’d say I’m skeptical but I’m always skeptical. Being skeptical is part of my worldview. Other skeptics are out there: One clever wag on Twitter pretty much nailed it when he said, “Journos should have learned to code before the code learned to journo.”
Heh. Anyway, after I stopped giggling I went over and created a free account at ChatGPT. You might recall my experiments with AIs writing fiction given a few sentences to start with. It was weird. Indie SF writers are in no danger, at least for the time being. I wanted to give ChatGPT a fair chance, just like I gave Sudowrite last year. Sudowrite started out weird and got weirder. Well, hey, I wanted to see it write fiction. My challenge to ChatGPT is to answer technical questions accurately and usefully.
It’s a chat program. So I started a chat:
Jeff: Will there ever be 128-bit CPUs?
I get asked this question a lot. My answer will be in the upcoming fourth edition of x64 Assembly Language Step By Step. It’s relatively simple, though there is some nuance.
ChatGPT’s first response:
It is possible that there will be 128-bit CPUs in the future, but it is not a certainty. The development of CPU architecture is driven by a variety of factors, including performance, power efficiency, and cost. Additionally, the need for increased computational power may be met through other means, such as the use of multiple cores or specialized hardware. As a result, the use of 128-bit CPUs will depend on the specific requirements of various applications and the availability of other solutions.
Hmmm. Saying this is sophomoric would be a slander on sophomores. But rather than reply to it immediately, I was given the option to re-generate the response. I clicked the button. ChatGPT thought (erk) for a few seconds and replied:
ChatGPT’s second response:
It is possible that there will be 128-bit CPUs in the future, but it is not clear what the need for such a large word size would be. Current 64-bit CPUs are more than capable of handling the vast majority of computing tasks and the industry has not yet identified a need for CPUs with larger word sizes. Additionally, the development of new technologies such as quantum computing may render traditional CPUs obsolete in the future.
This, in fact, is true, though it was still pretty much an obvious answer to a subtle question. So I clicked the “Regenerate” button again.
ChatGPT’s third response:
It is possible that there will eventually be 128-bit CPUs, but it is not currently a technology that is in widespread use or development. The current standard for most consumer CPUs is 64-bit, and there are also 32-bit CPUs still in use. The need for a 128-bit CPU would likely depend on advancements in technology and a growing demand for more processing power and memory capacity.
Sigh. Drink from the same well and you get the same water. I figured I needed a better question. I had one lined up and ready to go:
Jeff: Aren’t 128-bit registers useful for math?
128-bit registers can be useful for certain types of math, particularly for tasks such as floating-point operations and high-precision computations. Larger registers can increase the precision and accuracy of calculations, as well as allow for more efficient processing of large data sets. However, the need for 128-bit registers would likely depend on the specific application and whether the benefits of larger registers outweigh the cost of implementing them in terms of power consumption and hardware complexity.
I didn’t bother to regenerate this one. So far it seemed to be scraping Google, and while I mostly agreed with its answer, I would hope that Buzzfeed would require something more focused and in-depth. So I mulled it a little more and asked a third rather leading question. Read it carefully. There’s a lollapalooza in there:
Jeff: Wouldn’t the vector registers in the AVX-512 math subsystem make 128-bit registers unnecessary?
AVX-512 (Advanced Vector Extensions 512-bit) is an extension to the x86 instruction set that is designed to improve the performance of floating-point and vector operations. One of the key features of AVX-512 is the use of 512-bit wide vector registers, which can be used for a wide range of scientific, engineering, and financial workloads. The wide vector registers in AVX-512 can be seen as an alternative to 128-bit wide registers, as it allows to perform more operations in parallel with a single instruction, but it doesn’t necessarily make 128-bit registers unnecessary. For example, in certain types of workloads, it might be more beneficial to have a few large 128-bit registers rather than many smaller 512-bit registers. Ultimately, the choice of register size would depend on the specific requirements of the application and the trade-offs between performance, power consumption, and hardware complexity.
Bzzzzzzzzzt! Suddenly ChatGPT’s distant descent from poor ol’ Eliza became obvious. A few large 128-bit registers might be better than a bunch of smaller 512-bit registers. Right? Right?
I may test it more as time permits. After all, it’s free. But this will have to do for today. Among other things, I write humorous stories about AI. Looks like I just wrote another, without even trying.
Sudowrite would be proud.