As an aside, we need to dissolve roughly one large mountain into the mix layer (top ~50m) of the ocean to have it fully take up atmospheric CO2. Without dissolving, the reaction is very slow (co2 in atmosphere => slightly lower pH rain => reaction with mostly passivated rock + erosion).

Uniformity of the light field is going to be different, but that is not my sub-domain.

There aren't a lot of places with multiple km of water without things like animal life or other confounders.

When you give O(20000) people you have a 1-0.9999^20000 (high) probability that that will leak anyway (either 1/20000 people not following the rules, or just the accident/attack surface area).

The US added basically 0% extra transmission capacity last year.

... Now your local charging station will require a nuclear plant to keep up with ~1MW per car.

And can in many cases be much higher than the heat energy (e.g. theta pinch).

Maybe the conclusion is correct, or maybe not, but as written the methodology is under specified, statistics are not supported, and there too many confounders not addressed. One should not take anything from this without a better write up. Just misunderstanding what n= means is a huge flag.

Since the author is here, I have to ask: Why a blog post and not an actual paper? Why spray this onto the internet without validating the work? Or, conversely, why not caveat the work as exploratory data science?

Mines Museum of Earth Science (Golden CO) and The Harvard Museum of Natural History (Mineralogy room, Cambridge MA)

Fun info: The NASA orbital codes include things like photon pressure... from sunlight reflected off of other planets in the solar system. At some point, I think they are just showing off :)

It explains the intent (to protect consumers/grid from price changes and fluctuation), and bans 20MW+ loads. They forgot to define load, so a behind-the-meter datacenter (zero net load on the grid) still would likely not get permitted even though it does not violate the intent of the law, which is a bit odd.

If you have 100,000 satellites, and each collision produces 50,000 pieces of shrapnel with some distribution of altitudes and atmospheric drag, it's not that hard to do the math. The cinematic portrayal of cascading failure (ala the movie Gravity) is completely insane, but that doesn't mean this isn't a real problem on a 100 year timescale.

https://en.wikipedia.org/wiki/Kessler_syndrome

... It is a very real possibility, but less of a problem below 550km altitude because the decay time is much shorter (and why all of these mega constellations tend to stay at lower altitude, even though ~1000km is generally better for a communications satellite).