pedrocr

Joined 17 years ago

Karma
7,395
Submissions
2,062
Member since
Oct 23
http://pedrocr.net meet.hn/city/41.1494512,-8.6107884/Porto
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Recent submissions

Comment · 9 days ago
The only subreddit I've ever been banned from in 20+ years is /r/comics. Lifetime ban for a single offence of questioning a comic strip. According to the mod: "This is a fan subreddit, this is not a discussion subreddit." There's plenty of discussion on there, but I now realize it's highly filtered. It took me too long to figure that out because it mostly aligned with my views up to that point.

We're in bubbles everywhere now. Enforced by mods and payment processors and social networks. I'm now much more careful about what I post online. We don't have an actual public square to discuss things.

Comment · 2 months ago
Infinite growth is possible as long as your economy trades things that are not physically constrained. Art can grow in value over time without hitting any constraints. And even if your economy doesn't grow in real terms, to service debt all you need is for the economy to grow in nominal terms, to have inflation. And even if your economy stagnates completely and has zero inflation you just need to bring your deficit to zero to maintain the debt level. Every year you can just pay the interest on the debt from taxes and your debt as percentage of the economy stays stable without ever paying down the debt.
Comment · 2 months ago
You can deficit spend indefinitely as long as your deficit percentage is below your economic growth percentage. That keeps the total debt as percentage of the economy stable and the amount of tax you need to service the debt a stable percentage of your total tax.

If you do that it can be a good idea. It's a way to accelerate investment. It can also be a good idea to modulate your deficit in a cycle counter to the economy so that it acts as a stabilizer.

The US has been failing on all these. The deficits are too large and are high both in good and bad times. Eventually that breaks things.

Comment · 3 months ago
That gave me something to play with with these models and this came out as a claimed disproof of the Dixmier Conjecture:

https://gist.githubusercontent.com/pedrocr/51157b9b2eed8152e...

It seems mathematics has at least gotten a powerful new tool to automate the work to cascade results after breakthroughs are made.

Comment · 3 months ago
What you are describing is what's called free float market cap and is generally what market indices use to weigh stocks. That way you're only trying to replicate the market of stocks that are actually available to trade. There's nothing new about SpaceX in that respect, plenty of companies have float much lower than their total.
Comment · 3 months ago
> If I was an APT, compromising Tailscale would be priority number 1!

Crowdstrike would be at a much higher priority. They already have a cloud connected root console to all the machines in entire corporations. Compromising your network is small potatoes compared to that.

Comment · 3 months ago
> The computer I'm writing this on has 64 GB of RAM, 1024 times as much. By comparison I have a 20-core Intel CPU with up-to 3GHz speed or somewhere around there, even pretending each core could run at that max speed simultaneously (which they can't), that's only 133-times as much CPU power.

Over that time CPUs have also increased their instructions per clock by 3 to 4 times, so the comparison is a bit closer than that. 5Ghz in CPUs is also common these days which would make it even closer. RAM has also improved in more than just total size though.

Comment · 4 months ago
It was still more secure than the default if I understand this correctly. On resume from suspend the laptop would still be locked by the encryption key and without access to the disk even if you can somehow circumvent the lock. The only insecurity was that somewhere in the kernel memory the key still exists so if you can somehow extract that from the live system you can unlock it.
Comment · 5 months ago
+ battery too. I've wondered if a mini pc with battery would make for a good form factor. I often move between places where I have a desk with a screen but still use a laptop because I want to just suspend and resume. If a mini pc had a small battery just to hold its RAM while suspended I could move between places and just plug in a single USB-C cable and have my full workstation up and running. The thermals could be better than in a laptop and having a built-in UPS better than with a desktop. But last time I checked no one packaged things like that.
Comment · 5 months ago
In the AMA you link they say the tulip mania was probably a bubble just not a major one that impacted the economy meaningfully.
Comment · 7 months ago
That seems wrong. If you have a way to maintain enough propulsion for long enough you can escape the gravity well at any arbitrarily low speed. You "just" need to maintain that speed long enough for the escape velocity from the gravity well to go below it as it diminishes with distance from the mass.
Comment · 8 months ago
There seem to be some 15 inch all-in-ones but these days if what you want is a small form factor the answer is surely a laptop. Even if you're just going to keep it on the same desk forever that's what you'd get if you want 15 inch or smaller.
Comment · 8 months ago
I once made a criminal complaint because of a sewer line that was frequently allowed to overflow into a creek. The prosecutor refused to prosecute the case with the argument that the root cause was "real estate pressure" and so the county (that licenses and taxes any new construction) and the sewage operator (that coercively charges anyone that can physically connect) couldn't possibly be blamed.
Comment · 9 months ago
Comment · 9 months ago
One of the authors of this paper did a pretty long podcast with Huberman about this topic:

https://www.hubermanlab.com/episode/red-light-to-improve-met...

The show notes have links to quite a few more papers. I have no idea if this is good science but this is not just a one off paper.

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