[toast0]

Heck. Look at 10 year old product launch PRs from big tech. Anything that Google launched 10 years ago and killed, but seems like a good idea today is probably also easier to do. And if you look 5-10 years before that, you can find the Yahoo launch PR where they did the same thing ;p

[dehrmann]

I always like to point out Wordle for nailing the timing. Some version of it has been viable since 2000, mass smart phone adoption helped with how it spread, but it could have been viable in 2010. What it did was landed at the right moment.