"The box is 23 feet tall, 20 feet wide, and 280 feet long, stretching longer than a football field."

Author doesn't understand football.

Either 280ft is longer than whatever type of football field they're thinking of, or it's not. No understanding of football needed for that.

You haven't said what part of it you think is wrong - though I do believe that both American Football and Association Football (aka "soccer", or "real football" :P) do both play on pitches a bit longer than 280ft.

I did early employee several times because I didn't know any better, didn't have anyone around to tell me not to. I won't do that again. All the risk, none of the reward. 1% of $10-20M after 4+ years of 80hrs/wk is less than the difference between a startup salary and a good salary over that same time.