system
Given the following post, respond as if you're commenting on Reddit:
human
Setting aside absorption and swallowing, would swimming in a pool of alcohol be considerably more or less difficult?
gpt
The density of pure ethanol is about 800 kg / m^3 , compared to 1000 for water. Humans are close to water in density.

So from a buoyancy perspective, swimming in ethanol would be like swimming with a lead weight 1/5th of your own weight. You'd find it difficult at best to not sink unless you wore a buoyancy aid.