> Tiktok is not inevitable.
TikTok the app and company, not inevitable. Short form video as the medium, and algorithm that samples entire catalog (vs just followers) were inevitable. Short form video follows gradual escalation of most engaging content formats, with legacy stretching from short-form-text in Twitter, short-form-photo in Instagram and Snapchat. Global content discovery is a natural next experiment after extended follow graph.
> NFTs were not inevitable.
Perhaps Bitcoin as proof-of-work productization was not inevitable (for a while), but once we got there, a lot of things were very much inevitable. Explosion of alternatives like with Litecoin, explosion of expressive features, reaching Turing-completeness with Ethereum, "tokens" once we got to Turing-completeness, and then "unique tokens" aka NFTs (but also colored coins in Bitcoin parlance before that). The cultural influence was less inevitable, massive scam and hype was also not inevitable... but to be fair, likely.
I could deconstruct more, but the broader point is: coordination is hard. All these can be done by anyone: anyone could have invented Ethereum-like system; anyone could have built a non-fungible standard over that. Inevitability comes from the lack of coordination: when anyone can push whatever future they want, a LOT of things become inevitable.