So absolutely not true. Ben Franklin would have issued you a pecuniary penalty.

The reality is that it varies. You can't claim just because your startup is working out fine with 50 hours a week of work that other startups don't need more attention. The complexity of each startup is different; the number of founders is different; the amount of time a founder commits varies; and so on.

I should have been more blunt about my co-founder: full time job, girlfriend, side work freelancing, drinking with friends on weekends, and a startup. Do you really think it is possible to juggle all of that?