I've definitely had natural gas that turned out to be liquefied. Luckily, I was on the toilet already.

"I bought cardboard when it was 14 cents a ton."

Is this still available?

I'd probably invest 20 Million USD into producing open source Camera Bodies/Frames and Routers. As a side job I'd produce reclaimed/refurbished capacitors. As a venture I would invest in brine pit water electrolysis with a pendulum separation second stage to produce petrol salt byproduct, Oxygen, and Hydrogen while also cleaning up groundwater contamination.

The components for both camera bodies and routers are cheap but the end result gets sold for hundreds of dollars, and in fact there are very few options that aren't filled with proprietary firmware and are difficult to open or service.

The capacitors I expect to work as my retirement. In a transition to solar and hydrogen economy they will forever be in demand, and can even be sold for profit currently if you buy in bulk and fashion in home capacitors to limit high-usage surge pricing of utilities to a minimum.

The venture I spoke of almost certainly will operate at a loss. Even if the hydrogen and oxygen are valuable, and even if you can find a use for the salts, it's going to cost a metric butt-ton of electricity to operate: first for the pumping, second for the electrolysis. Secondly, the equipment would need constant maintenance and could be hazardous under high (and efficient) load.

The thumbnail image looked like four eggs, and the title still made sense.

I'm not that well to do, but I hold my own. I only got 3 old CNG tankers. My kid's kid's kid's kid's kids will probably have the tankers paid off in no time!... Think about it! Say you got 3 kids, and they get 3 kids each, so that's 3^5 =243! So like $100k each! That's 5 short years of eating top ramen every day.

big if true