On July 1st, 2016, there were no Pokémon GO players.
After only two weeks, they had 28.5 million DAUs.
During my research into their phenomenon, I learned that they had already achieved Product Market Fit two years before releasing their product to the public.
Google’s April Fools’ Day joke in 2014 was the catalyst for the entire event.
Within weeks of its release, the video had amassed over 6 million views (16 million in 2014).
There are over 16,000 comments (feedback from potential customers) on this video.
BTW, Dropbox did the same thing.
They faked a product video to collect email addresses before actually making the product itself.
Invaluable guide to finding Product Market Fit before ploughing resources into making a physical product.
Source: https://mashable.com/article/john-hanke-pokemon-go#tXAsB8q4wmqg