For me, interactions with novel people, experiences, and ideas are a big feeder for my own ideas.
And thats not about what SV is today. I was lead to believe the so named HBO show portrays it quite accurately. I was thinking more what it was in the 70s.
Though to be honest living in the mediterranean I vastly prefer the walkable nature oriented laid back kind of places myself. Way more fun (and healthy) to live in. I was just wondering if that boredom thing was a factor
A good comparison is creativity in art. I know people who attend a ton of plays, for example, but that doesn't prevent them from creating new plays. Artists tend to cluster in space and in social networks (that is, schools of art) because they draw inspiration and ambition from other artists and their works.
I think it's not boredom, exactly, but being more interested in creation than consumption. For people inclined to consumption, we now have infinite amounts of entertainment. But plenty of people still like creating things for others, creating things with a real impact on the world. YouTube and GitHub make it clear that there are a lot of those people out there.