adgjlsfhk1

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Comment · 2 days ago
H.264 (if you want to support 20 year old devices) or av1. Don't use h.265. The patent situation around it is a total mess.
Comment · 3 days ago
Bluetooth 5.3 with LE audio would also be very nice.
Comment · 3 days ago
> What if they get blocked from the network and repeatedly change accounts, IPs and then MACs repeatedly to get around progressively escalating blocks from the network admins?

If you think anyone who makes a new account in a videogame for getting an old account banned should be charged with felony hacking, that's certainly a position you can take...

> What if they run from the police who try to stop them?

Running from police officers isn't generally considered hacking.

Comment · 4 days ago
no. The DFT result as published uses unlimited precision, but the comparison with the int multiplication shows that the unlimited precision just makes the paper shorter/easier rather than being an exploit in the computation model.
Comment · 4 days ago
> but either it's wrong or the previous results were wrong, no?

Not quite. This result uses polylog(n) precision which isn't bounded, so it escapes the previous bounds. This doesn't noticably affect the runtime because not all of the math needs this extra precision (in this case you need a couple computations in higher precision but less than n operations), so the extra precision can be payed for even in a TM/circuit model.

Comment · 4 days ago
The DFT result isn't RAM specific. It holds up in multi-tape turing machines. (it is, however, galactic).
Comment · 4 days ago
Well optimized radix sorts are actually pretty fast (assuming you have the proper fallbacks to quicksort/insertion sort to deal with medium/small sizes)
Comment · 4 days ago
For long term storage, the right batteries don't exist yet (commercially). The good options are going to be one of sodium ion, flow batteries, or thermal batteries.
Comment · 4 days ago
The ~grid scale design of this for reference is somewhere around 200mx200mx50m for above ground, or ~100m cube (or bigger) for quarry infill. Such a design is going to get crushed by battery/hydro over the hours/days, but wins on cost for seasonal usage.
Comment · 4 days ago
Realistic designs for this can achieve 450C delta t. Your energy store can store at ~1000C (slightly below rock melting point), and run steam turbines with a hot side of 600C and a cool side of 150C.

Over the season, your sand drops from ~1000 to ~600 (which is fine since your power needs drop in the spring)

Comment · 4 days ago
right, but anything linearly reducable to kSAT is trivially sub-exponential, and a discovery like this means that linear reductions are a whole lot more important than they used to be.

Also for NP problems that can't linear reduce to kSAT just having the knowledge that SAT is sub-exponential (and the tools), makes it a lot more likely that we see a whole lot more problems become exponential.

Comment · 4 days ago
That's not really a problem. A spin up over a couple hours matches nicely with the slow sunset over a continent. The sun takes ~4 hours to go from a bit above the horizon in the east coast to a bit below the horizon on the west coast (solar panels make some power in twilight).

Wind also helps since wind makes more power at night, as does demand which is dramatically lower at night.

For coal, Great. Making coal economical is excellent. We should have banned it worldwide 20 years ago.

Comment · 4 days ago
the presumption is that these results are a side-effect of reinforcement learning to make the models smarter.
Comment · 4 days ago
OTOH, it would be surprising if this sort of technique didn't apply to other NP problems.
Comment · 4 days ago
no. It's huge.

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