> You say, while going through the same calculations as Thunderf00t makes, to make the same points he makes

Right, but people reading my comment don't have to sit through a long video of some guy yelling at them to see that the calculations are correct. And they can see your correction to the airflow calculation immediately below my comment:

> Double or triple that to get it through while the sun is shining.

I'd say quadruple, given the typical 25% capacity factor for utility-scale PV in the desert in the US. (Quintuple or more if you aren't in the desert — but then you can just use a rain barrel.) I should have included that correction in my comment, and I appreciate that you took the time to point it out.

> we can hear the fans running and see how "barely noticeable" they are

It's all a matter of ducting cross-sectional area. 10k m³ per day is 120 ℓ/s; through a 100-mm-diameter round duct that's 15 meters per second, or 55 km/h, "near gale" on the Beaufort scale. The same 120 ℓ/s through a one-square-meter aperture is 120 mm/s, a wind speed where smoke from a chimney rises vertically.

> This comment is weird because I imagine you don't actually right now have a solar-water-dehumidifier providing water for your family so that you don't die in 48 hours when your water supply fails? If not, why not?

I don't live in the sort of desert where a solar dehumidifier would be a better option than a cistern; I live next to the widest river in the world. If I dig a hole in the sandy soil, after about three meters I have to stop digging unless I have an electric water pump running 24/7 to keep the hole from filling up with water. I don't know how things are where you're from, but here in Argentina, we have municipal water supplies run through pipes, supplied by water treatment plants. Unlike truckers, the pipes don't go on strike, call in sick, or get hijacked by asphalt pirates, and if a worker at the plant does, another worker can fill in for them. There's a 1000-liter water tank on the roof which takes about three days to empty when the water main does cut out. (Yes, sometimes that means it gets unpleasantly warm.) Dozens of grocery stores are a short walk away, replete with bottled water and soft drinks. We get 1200 mm of rain a year. In fact, it's raining right now.

A friend of mine lives in a nearby suburb that doesn't have a municipal water supply and where the river water is too polluted to drink safely. Her roof drains into a rain barrel.

My family members who live in semi-arid deserts without municipal water systems drill wells. (One of them actually has a dug well, the kind you could fall into, predating the municipal water supply.) The aquifers reached by the wells go lower every year, and sometimes you have to go and drill them deeper. In such places, civilizations like that of the ancestral Puebloans have collapsed during centuries of drought. People living in such places today without well-drilling equipment often spend many hours a week walking to water sources and carrying the water back home.

Many deserts today have no permanent inhabitants because of such considerations — you can only stay there until you run out of the water you brought with you. Burning Man is held in such a place, but not the driest one; there are places in the Atacama where rainfall has never been recorded. Theoretically a permanent settlement in such a place could rely on weekly water tankers driving in from wetter regions, but, for the reasons I outline above, only theoretically. Household-scale solar dehumidifiers are a much more feasible solution.

The more important reason my comment is weird is that it engages in factual and logical exploration of things that currently do not exist, but could, based on objectively verifiable information about the world. Your comment is weird in the same way, and I appreciate that. Let's have more weird comments.