Believe it, bub. In backwater places like Brazil people have moved on from credit and debit cards to fully digital systems like Pix. Meanwhile my town in Tennessee will take only cash or cheque for taxes.
I think it downplayed the importance of CO2 scrubbing, because we can tolerate low O2 a lot easier than high CO2. High CO2 is also what gives us that suffocating feeling.
It briefly touches on rebreathers near the end. The theory behind them is that the difference between the %O2 on the inhale and exhale of our breathing cycle is very little. So if you can get rid of the CO2, you can re-breathe that same air for a “long” time before it starts to get too low in O2 content and it starts to impact your survivability.
Except it wasn’t Palestine that attacked, it was a group disassociated with the Palestinian Authority, that Israel itself funds so it can justify the “war” to favor the arms dealers and distract the constituents of the terrible administration they’re receiving.
The two conflicts are not even remotely comparable.