But most startups aren't even solving those types of problems. They're building marketing analytics or hr management or food delivery software..

I think he means solving these problems in the work environment.

Not really... But if you want to interpret it that way it's still a valid point.

I meant not working at the startup doing marketing analytics (although this could be fun if the problem is unique and challenging) hr management or food delivery. Maybe look for the next Pied Piper and work for them :D