There's usually tight period where you can make money when these new ecosystems ...

There's usually tight period where you can make money when these new ecosystems pop up.

With Android/iPhone, it was clearly 2008-2012, as you mentioned.

With Google/SEO, it was 2004-2010 (right before Google Panda/Penguin algorithm).

With Facebook ads/Shopify/DTC, it was 2010-2016.

With SaaS, it was 2010-2016, IMO.