Pick one. Look up a vanished civilization and you've got a decent chance of finding one.

I googled "vanished civilizations" and the first hit is this:

https://www.britannica.com/lis...

First on the list is the Maya:

At its height, the Maya empire extended throughout the Yucatán Peninsula, modern-day Guatemala, Belize, and parts of Mexico, making it one of the most dominant civilizations of its time. The Maya were quite advanced, demonstrating remarkable engineering skills and employing complex mathematics. The civilization appeared unable to sustain itself and experienced a dramatic decline about 900 CE. Archeologists now believe that the Maya were victims of ongoing war coupled with climate change that resulted in famine, forcing an exodus from their largest cities. Decimation of the countryside, resulting in diminishing resources, may also have played a role.

I agree that you not knowing what you're talking about is unlikely to affect much.

I do hope nobody takes my post about your knowledge of scientific notation as some kind of support for your inane belief that the Earth being massive means we can't affect the climate.

The problem with public lectures is that you have to simplify things, and that means skipping the details.

You can present a compelling story about cosmology and the dipole in the CMB. Or the quadropole, which is weirder. Or that our galaxy is in a denser than average part of the universe. Or that our galactic cluster might be in a void.

They all have different effects, in all directions, all depend on particular sets of assumptions which aren't unreasonable but also aren't guaranteed to be true, and all are compelling when that's the only story you hear.

Rotation isn't relative the same way unaccelerated motion is. The net angular momentum of the observable universe has been measured repeatedly. As far as we can tell, it's zero.

You've dismissed an insightful comment.

It's apparently not exactly clear what 1922 theory he's referring to, but we certainly didn't just take something from 1922 and use it today as is.

There's general relativity, which we keep trying to poke holes in, the idea of the big bang itself, which dates to the 40s, dark matter, from ~1930s, refined and tested in a lot of different ways since then, dark energy from 1998, inflation in the 1970s, and a bunch of other things.

If you want to point to a single theory underlying modern cosmology that's existed approximately unchanged for a long time, it's general relativity.

Oh, climate change is best at fucking up cities. They can't move, and they're dependent on a regular supply of food.

Our species will survive past this one too.

Many of our civilizations did not survive past warming and cooling cycles, even though they often had more time to adapt than we're likely to get. The go-to explanation for "why did X civilization disappear" is "environmental factors."

I will. 250 million is 2.5 x 10^8. 7.6 sextillion is 7.6 x 10^21.

250 mg is 2.5 x 10^2 * 10^-6 kg = 2.5 x 10^-4 kg. 80 kg is 8 x 10^1 kg.

The difference in the first case is 21-8 = 13 orders of magnitude. The difference in the second case is 6-1 = 5 orders of magnitude, for a total difference of differences between examples of 13-5 = 8 orders of mangitude.

Your claim was "50,000 - 100,000 orders of magnitude off". Assuming the "-" is "to", that's 5 x 10^4 to 1 x 10^5 orders of magnitude.

I think it's safe to say you don't know what "order of magnitude" means.

True. You can soar on wind deflected upwards by hills or mountains too. I wouldn't recommend doing it on meth though.

You wouldn't believe what those younguns are getting up to in the darkroom.

This should allow them to finally catch bin Laden.

You can do lots of computing with one bit. Logic, for example. It's arithmetic where YMMV.

All of which is more or less irrelevant anyway. The Z80 has mostly 16-bit registers, a 4-bit ALU, and can do whatever precision math you want, so long as it fits in 64 KB. Unless you want to get creative.

You have made the rookie mistake of assuming the poster's commentary in the summary is in some way relevant. You'd think the first sentence would have tipped you off to their general position on the issue.

The actual government page says this:

The Motor Vehicle Act prohibits a person from driving, or permitting the driving of, a Level 3, 4 or 5 automated vehicle. This means that highly automated self-driving vehicles cannot yet be driven on public roads in B.C., nor can highly automated self-driving features be used, unless enabled through a pilot project under the Motor Vehicle Act or by regulation in the future.

Highly automated self-driving vehicles remain a new and emerging transportation technology. Further testing and policy development are necessary before Level 3 or higher automated vehicles are considered safe and can begin to be allowed for public use on B.C. roads.

So pretty much like everywhere else except for one car in California and Nevada.

I guess Nevada doesn't really have very many woods though, back or otherwise.

No, it's spoken like that dude who was driving 5 km/h under the speed limit but as soon as you try and pass him always seems to end up doing 20 over.

In another reply he says "I driven 18_wheelers coast to coast for years". So actually he adds some additional tricks to the repertoire like going 20 under up the hill, spending five minutes passing some other "18_wheeler", then hitting another hill and doing it all over again.

I think the other guy replied to you sufficiently. The world, and the things in it, are considerably more complicated than your American cold war us and them conditioning has lead you to believe.