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Comment Re:Make that 50 years or longer (Score 1) 157

In November he updated the rocket roadster to a flying roadster that we would see demoed by the end of the year. That created a distraction for a few weeks.

I read a few accounts of this meeting to get a good picture of what happened and it is a whole lot of nothing. Musk was just gassing to investors in a meeting with his trademark vague "visionary" BS.

Rest assured, he will bring Mars up again in the not too distant future when he needs another distraction.

Comment Re:FUCKKK YOUUUU!!!!!!! (Score 4, Informative) 47

In The Jetsons the aerocars are antigravity devices that operate effectively like cars only moving through the air. Notice for example a cop on a hover thing "pulling them over" stationary in midair while a ticket is being written. A conceit and premise in The Jetsons is that they live in the sky (for unspecified reasons) but has all of the properties of living on the ground for practical purposes.

Appealing to a fantasy antigravity vehicle that does function like a car is not a strong case in favor there.

Comment Re:Scientists continue to test their beliefs ... (Score 1) 72

I agree completely. One should always *prefer* to use Occam's Razor. But that's a matter of engineering or efficiency, not of truth. NASA gets along quite well by almost always ignoring Einstein's theories, and preferring those of Newton. (But not when they're using GPS.)

Deep space navigation also requires taking relativity into account. They use Parameterized Post-Newtonian (PPN) which adds relativity terms to Newtonian calculations for the level of precision required (easier than doing a full solution). PPN works when gravity fields are weak and speeds slow.

Comment Some Terriers Lean Words Quickly (Score 5, Interesting) 51

I know from experience. I had a Jack Russel Terrier mix who on his own (not taught) learned a couple of hundred words I estimate. The word "vet" would make him dash off and hide. Any word for a food he liked he would learn quickly -- if we said it he would bark loudly. Also words about going outside. We began spelling food words or using euphemisms ("canine doctor"). Not quite as impressive as the dogs described here, but then he was never tested like that so maybe he could have done it.

Comment Accelerationists (Score 1) 139

On the r/accelerate Reddit I see that the "accels" ("decels" are banned) are crowing about an METR study showing that the time to do an office task satisfactorily 50% of the time has been dropping, which they whoop about showing "exponential improvement" is still on track. So hitting a low bar on the easiest office tasks faster is for them they proof that AGI is around the corner and that skeptics have been disproved.

Comment Why Not Use MRIs for Pancreatic Cancer Screening? (Score 1) 75

The "most interesting" finding was the pancreatic cyst, because, at this size and location, there's a 3 percent chance it will become cancerous in the next five years. But if annual follow-up scans of my pancreas (covered by insurance) show it's getting bigger, the cyst can be removed before it becomes cancer. For me, this made the MRI worthwhile. Sure, there was a 97 percent likelihood the cyst never would develop into a problem even if I hadn't learned about it. But now, with minimal inconvenience, I can eliminate that 3 percent risk of getting pancreatic cancer, the most lethal of major malignancies.

The normal lifetime incident of pancreatic duct adenocarcinoma (PDAC) in men is 1.8%. That cyst is bumping the odds up by about 2/3 (from what the says) is significant but not a huge change.

But he is seriously misinformed about the medicine here. He imagines that checking this cyst periodically will alert him before it becomes cancerous and metastasizes and then removing the cyst will be a "minimal inconvenience" and this program will protect him from the risk of PDAC.

MRI is not currently reliable for detecting the development of PDAC whether a cyst is present or not -- it can develop as a lesion, not a cyst, and not be detected and the cyst can be become cancerous and that transition not be detected. And removing the cyst will not eliminate his chance of getting PDAC -- only removing the entire pancreas will do that and that results in severe permanent metabolic disease including refractory diabetes, shortening life. And far from being "minimal inconvenience" any surgery on the pancreas is major surgery -- it is not easily accessed, multiple internal organs must be displaced to gain access.

Since the typical PDAC is almost always fatal why aren't we using MRIs to screen everyone for this deadly disease? Doesn't this MRI monitoring work as he supposes? Unfortunately at the present time this is not an effective screening method -- no one has a demonstrated effective surveillance program. Even though it found a cyst that is a potential threat, and has a chance of detecting its transition to becoming cancerous, one potential pathway to PDAC, thus this reducing his chances of getting PDAC, his apparent belief that this will eliminate the risk of getting PDAC is false. MRIs and MRI analysis is constantly improving so this may be possible in the not too distant future, but at present he is assuming effectiveness that is not available.

Comment Re:Well duh! (Score 2) 42

They aren't a non-profit now. They are a money-losing pre-IPO company.

The fact that they adopted a complex structure to obscure this (the OpenAI Foundation owns a 26% stake in the for-profit part) is simply a shell game. Before they attempt an IPO expect the corporate structure to get changed yet again.

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