There’s been some reporting that Musk’s Super PAC has been paying its workers so well that it’s poached a bunch of the volunteers from the official campaign, and is so poorly run/audited that a lot of the workers are entering false data into the canvassing reports to qualify for bonuses. If that turns out to be true, then it will have been the case that Musk is burning his own money while hurting the Trump campaign.

I’m not ready to call the race, but stories like this at least reassure me that for Republicans, they’re not sending their best.

I made my own “cell phone service” but it only works within 10m of my home.

Yeah, evolving lungs ended up clearing the way to make use of the much more plentiful oxygen in the air compared to what is dissolved in water. Amphibians and reptiles have pretty low metabolisms, but birds and mammals basically evolved endothermy (aka warm bloodedness), probably in support of much higher muscular power output. Ectotherms (aka cold blooded animals) have metabolisms that are correlated to temperature, which means they can’t exert themselves as well when it’s cold. Endothermy allowed animals to be warm all the time, and therefore use higher muscular power output in any environment, especially sustained.

That means mammals and birds were able to cover more distance, and survive in places where reptiles and amphibians can’t, and all the advantages that carries.

This article estimates at a 40kg sailfish uses about 2.7 megajoules per day of energy when hunting. That’s about 650 kcal.

An 80kg human weighs about twice as much and needs about 3 times the energy, without even exertion.

Warm blooded animals spend a lot of energy just maintaining body temperature. Plus water doesn’t have very much oxygen in it, compared to the atmosphere.

There’s not enough oxygen in water to support our metabolisms, even if we had gills.

Fish are adapted to conserve and use less oxygen, from slower metabolic rates to more options for anaerobic respiration that doesn’t poison oneself from within.