I’d say perfluorocarbons, like perfluorodecalin. Harmless and clear, but they have huge oxygen absorption capacity, so you’d surely be able to breathe even if you sank your face in it (probably not fun to do so tho).
No, you still die, because a viscous and therefor slow-moving liquid physically can’t remove CO2 fast enough from your lungs. Otherwise we’d have lots of premature babies hanging out in jars.
Unfortunately, in humans CO2 is the thing that gives the “suffocating” feeling, and it takes a long time to actually kill you at modest levels, so that description still applies a bit.
I’d say perfluorocarbons, like perfluorodecalin. Harmless and clear, but they have huge oxygen absorption capacity, so you’d surely be able to breathe even if you sank your face in it (probably not fun to do so tho).
Very difficult to immerse yourself into these, though, because of their density being about 2x that of the human body.
Like waterboarding yourself whilst never dying
No, you still die, because a viscous and therefor slow-moving liquid physically can’t remove CO2 fast enough from your lungs. Otherwise we’d have lots of premature babies hanging out in jars.
Unfortunately, in humans CO2 is the thing that gives the “suffocating” feeling, and it takes a long time to actually kill you at modest levels, so that description still applies a bit.