A person can only drink about 3L of liquid per day.

So unless each beer was 100ml -> less than a standard beer can, this bullshit on the physics alone. And everyone here claiming "30 is totally doable, and then some" while ignoring the sheer volume is making themselves look like an idiot. And that's before you consider the effect of the beers from 6am being long gone by the time you're drinking your 12pm beer. Maybe if you're drinking teeny tiny beers..