I love these ‘Can’t prove a negative’ types.
Done every day with computer programs, for starters.
I’d like to set up a booth, fill it with CO2, put a sign over it that says, ‘There’s no oxygen in this booth, and I can prove it.’
Really - Are you sure there is no oxygen in there, or just insufficient oxygen to survive?
How would you prove that there was NO Oxygen, exactly?
Extra credit - if you filled a perfect vacuum with only CO2 - I guarantee you that there is Oxygen in there.
Have you even taken Chemistry?