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Elon Musk.

Ok, so he's a bit of a arse, and I really wish he had stayed out of politics, but overall...


He’s responsible for at least hundred of thousand of death with the illegal shutdown down of USAID

How is the hyperloop coming along nowadays?

We’re just going to ignore Tesla, SpaceX, and Neuralink to point at something that he said he didn’t even want to do and said other people should try it?

If anyone else had a single one of those companies it would be considered a life-defining achievement. He has multiple at the same time. Not having a 100% unicorn rate doesn’t make someone a failure.


i share your sentiment, the politics venture hurt his brand, but he's still a crazy impressive entrepreneur

Neither the rules link nor the home page are much good for anyone who wants to get a quick look at how it works. Pages of text — great. I'm not going to register just to see a game in action.

How about a demo page? Let me play a quick game against an AI, or show me a game being played. A video would be ok, but i think people would rather play with the thing.


Free electricity in summer and high prices in winter is not a bad place to be really — it provides a good incentive to develop long-term storage. Batteries are probably not it. Pumped hydro is good — not in Denmark (too flat), but maybe in nearby Norway. Maybe synthetic fuels could be produced and stored economically?

That's how it works in Australia, though rotated six months: Summer starts December 1, Autumn starts March 1, Winter starts June 1, and Spring starts September 1. I think it even has legal status. In the North of the country though they typically just use wet and dry season.

I've also always thought that the equinoxes and solstices should be the middle of the seasons, so using the 'cross-quarter' days as the beginning of seasons makes more sense.


These are wonderful!

Thanks perilunar - I see from your profile you're a clock enthusiast as well! I'm starting to think we should start an HN web ring for clocks.

A bit of feedback for your sun clock: since it asks for my location, by the time I clicked “Allow,” it had already timed out while trying to get the location. You may want to have it continuously check for permission changes and then initialize the sunrise and sunset features once access is granted. Cheers!


I wonder if you could find all the seconds in the region around the HH:MM time — or more to the point, how much do you need to zoom out to find the nearest SS pair?

Then you could keep the HH:MM time centered as it is now, but highlight the nearest SS each second.


That's a good idea! It would make that sixty seconds a little bit more engaging instead of just hanging around on one time and having to wait before it zooms out to find the next HH:MM combination.

I had initially set it up to go for each second, but it was physically giving me whiplash.


To blow my own trumpet a bit: https://sunclock.net/

If you turn off the numbers you get a pretty decent and (i think anyway) culturally assumption-free clock. It tracks the sun and moon, shows the seasons (in #calendar). The direction it turns matches the way the Sun moves in your hemisphere.

More generally, I think 24-hour analogue clocks are already pretty culturally neutral — I don't understand why we ended up with 12-hour clocks being the dominant form.


> How do we keep the meanings of words from diverging so dramatically and so rapidly?

By reading and re-reading old books. You learn the original meanings and usage of words and then recognise when someone tries to twist them.


Can someone more knowledgeable explain this better please? I have questions:

- if you can measure the 'optical singularities' travelling FTL, then surely 'information' is travelling FTL?

- does it matter (i.e. violate relativity) if something is travelling faster than light speed in some medium as long as it doesn't travel faster than light in vacuum?


Good questions:

> if you can measure the 'optical singularities' travelling FTL, then surely 'information' is travelling FTL?

Information is not traveling FTL.

The canonical example is when you have a lighthouse in the middle of a huge circular wall. The light spot may move faster than light when you see it on the wall, but the info moves from the center to the wall, not along the wall.

When the singularities are far away, you can treat them like a single entity, and track the anti-peak and measure it's speed and they will move like 1/100 of the speed of light in this case.

When the singularities are very close together the anti-peak may move at a faster speed (FTL IIUC), but it's just an illusion for tracking the peak. The information moves slower than light.

> does it matter (i.e. violate relativity) if something is travelling faster than light speed in some medium as long as it doesn't travel faster than light in vacuum?

This is totally possible. It's common if you live inside the water pool of a nuclear reactor or a neutrino detector. More info in https://en.wikipedia.org/wiki/Cherenkov_radiation


No. It's not really a predator-prey relationship, because the predators aren't consuming the prey for sustenance. They are killing out of self-defence only.


"predators aren't consuming the prey for sustenance".

You don't know that....


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