We know from high-altitude aircraft accidents (like https://en.m.wikipedia.org/wiki/Helios_Airways_Flight_522) that lack of oxygen leads to quick and painless loss of consciousness and eventual death.
To be clear, I am against the death penalty, but if it’s needed then I much prefer a humane method rather than untested drugs that often backfire.
Death row inmates falling asleep and not waking up.
Death row inmates being drawn and quartered (bit of an extreme example).
(for those that don't know "drawn and quartered" involves four plow horses, some rope and an axe or two)
And, in case anyone is wondering, no I am not suicidal. I became interested in the topic after reading about Air Force pilot training, where the pilots were put into a large decompression chamber, the pressure was reduced to simulate high altitude, and the pilots were required to remove their oxygen masks, so they could learn to recognize the symptoms of hypoxia. I vaguely remember that one of the side-effects of hypoxia is euphoria, which would run counter to some of the comments about there needing to be a component of retribution or punishment to the death penalty.
Lethal injections are used because they tend to make for a good show, not because they're anywhere near the easiest or most humane option available.
Yup, that would make the world a better place... /s
Ok, fine, the parent didn't explicitly say that is a view (s)he shares.