The best way to have startup ideas is to just notice them organically. 

You mean like Linux?

Like ElasticSearch (the guys who created it first built something to help his wife manage her recipes).

It's unlikely. Possible, but unlikely. You'd have to build an OS for something new, like how Android started

talk to clients, read the moms test

It’s usually easiest to start by solving a problem you have yourself!

@@ycombinator Great! If I understand it right. I need to look for problems in my domains of interest. And then evaluate which ones to solve?

@@johnddonnet5151 thanks a lot for letting me know about mom's test.

There are certainly non-tech roles at startups that are also great learning experiences! Check out workatastartup.com for open roles at YC companies 😊

YC is a tech startup incubator but not every startup is tech based. We're in a tech bubble right now so a lot of them are.

No.

VCs are domain experts on startups themselves. If you look around at some successful VCs, you'll see that many of them have already started and exited their own startups, sometimes on a few different occasions.