DennisP

11 ms·

151.
by DennisP 6mo ago
No CUDA, 1.6T parameters but with 49B active...does that mean you can run it efficiently on a 64GB macbook?
152.
by DennisP 6mo ago
It could have been by just pointing the phone at the suspect's face.
153.
by DennisP 6mo ago
Yes, I get that, but for whatever amount of money is found, you're better off using it more effectively. The cost of things still matters, if you want to win wars against serious adversaries. One problem the US has had in its Iran ad
154.
by DennisP 6mo ago
They can also sit in one spot guarding a position without using much battery. Ukraine recently took territory from Russian forces using ground bots, the first time it's been done without using soldiers on the ground. Now they're s
155.
by DennisP 6mo ago
It matters quite a bit. If your drone costs $1000, you can build a thousand times more of them than if a drone costs $1M. As the saying goes, quantity has a quality all its own. This is a lesson the US has yet to learn, and its military dro
156.
by DennisP 6mo ago
Fwiw, machine learning is already being used for plasma simulations. The race between doom and the stars is something I think about quite a bit.
157.
by DennisP 6mo ago
For the most part I think we're in vehement agreement. I wrote above that nuclear plants are permitted with inspection under the NPT, and I would expect D-T fusion to be the same. Your links also say that reactors are allowed in prac
158.
by DennisP 6mo ago
Just because we understand the physics pretty well doesn't mean we've done all the detailed engineering for a production plant. That's the level we're at right now, for tokamaks. Building extremely large plants right off
159.
by DennisP 6mo ago
That'd be an interesting situation. They'd probably replace their fleet of batteries gradually, so with each swap sometimes you'd get upgraded, sometimes downgraded. Your range and home charging curves would change with the b
160.
by DennisP 6mo ago
Good points, but in all of that they are specifically targeting enrichment and reprocessing, while allowing nuclear power plants. A fusion reactor is a power plant. It produces neutrons but so does fission; in fact, conventional fission pla
161.
by DennisP 6mo ago
There's a big difference between "it will be decades before we've replaced fossil plants at scale" and "we won't have net power until we invent magical new technologies that we have no clue about today."
162.
by DennisP 6mo ago
My point is, that's a pretty positive view of fusion. They think it's too good to be true, but if it actually happens then I doubt many people will suddenly switch into thinking it's a dirty old explodey thing like fission&#x
163.
by DennisP 6mo ago
That wildly overstates how far off we are. To take the most conservative example, tokamaks have very well-known scaling laws and based on those, CFS is generally expected to exceed breakeven with SPARC and get to practical power levels with
164.
by DennisP 6mo ago
Probably not all countries, but any NPT signatory has the right to build nuclear power plants, they just have to submit to inspections.
165.
by DennisP 6mo ago
Judging by the comments I see most places, the general public's perception of fusion is "magical scifi tech that will never happen."
166.
by DennisP 6mo ago
Part of that cost is from ITER being so huge, which is because they use obsolete superconductors. CFS is doing the same thing in a reactor a tenth as big, using newer superconductors that support stronger magnetic fields. The size and also
167.
by DennisP 6mo ago
You can easily go through a couple hundred rounds in one visit to the range.
168.
by DennisP 6mo ago
I'm not sure that's a big strike against it yet. Kinda the whole point of engineering in academia is to work on hard things that are far from commercialization.
169.
by DennisP 6mo ago
I think there's a selection effect there that makes it an unrepresentative sample.
170.
by DennisP 6mo ago
That's why they followed up with an actual experiment with mice, where they found that just adding the bacteria made them stronger. Of course we won't know for sure before doing human experiments, but it'd be an odd coinciden
171.
by DennisP 7mo ago
Someone else here pointed out that when your biggest asset is a network of thousands of satellites that all have a five-year lifespan, earnings after depreciation is unusually important.
172.
by DennisP 7mo ago
Those are a lot of great points but I'll nitpick a couple things. While it's true that Starship has never reached orbit, they have reached orbital velocity several times. They could have gone into orbit if they'd aimed in t
173.
by DennisP 7mo ago
So far everybody's playing catch-up, but there are some innovative rocket companies out there. Blue Origin is finally getting to orbit with partial reusability, Rocket Lab and Relativity Space are doing some cool stuff, and Stoke Space
174.
by DennisP 7mo ago
I don't think anyone can say there are insurmountable obstacles, but it's still a hard problem they haven't solved yet. Bits of the rocket are still melting on reentry, and they have to fix that to achieve rapid reusability.
175.
by DennisP 7mo ago
But SpaceX launches manned missions, with a perfect safety record so far, plus a fantastic success rate for their unmanned Falcon flights. They "launch early, launch often" for their test flights. The main reason NASA can't d
176.
by DennisP 7mo ago
People typically stay on the ISS for six months.
177.
by DennisP 7mo ago
It's not just the legal industry, it's the legislators. I used to be friends with a former state senator, who had a background in forensic accounting. She said they purposely made the bills harder to parse than necessary so it was
178.
by DennisP 7mo ago
That doesn't read like an AI-generated comment to me. He did mention he vibe-coded the project but that's not against the guidelines.
179.
by DennisP 7mo ago
I just said that China is taking the biggest share of the market, and you counter with the price of a Volvo? Prices are the biggest advantage of the Chinese models. BYD for example has the Dolphin compact at £30K, Atto 3 SUV at £38K, and Se
180.
by DennisP 7mo ago
More of a digital copy scenario. The article says the process involves toxic chemicals that lock everything in place so the connectome can be examined. There's no known way to reverse the chemical process in the biological brain. http

More ›