The Silicon Valley way of working assumes the unique culture of the western US in which it developed, which exists independent of tech. While the ways of working are straightforward, it is difficult to export the social context in which they evolved and the expectations built into that. This is the hidden assumption of the Silicon Valley way of working.

I believe one of the reasons Seattle emerged as the second tech juggernaut city, versus another random metro in the US, is that it shares the same western US culture as Silicon Valley and therefore could adopt Silicon Valley's methods unmodified and expect similar results. In other parts of the world, and even in e.g. the eastern US, the impedance mismatch between the Silicon Valley way of working and the socio-cultural milieu are pretty visible.

Eh, sort of. As an east-coast resident who has worked for both tech startups as well as large companies, (currently one of the large SV companies), I will say I still view SV as a very different vibe than any work culture I regularly experience here. Anecdotally, my colleagues - past and present - would agree.