Earlier quoted context omitted.
That's a good point but odds are gmail won't be around in 20 years. The most popular email 20 years ago was aol later hotmail. Most popular search yahoo, altavista are gone. ICQ is mostly gone. Myspace is gone. Facebook is dying slowly hopefully to be replaced with some form in the meta world. To make it 18 years is special but it's going to take a lot of reinvention to keep up for the next 20 years. They have the be…
Those services existed only for a few years before fb, google etc took over
Hotmail launched in 1996 and GMail didn't get popular until at least 10 years later. (IMAP was added in 2007~ and the beta was lifted in 2009 iirc).
That's a lot of time to be relatively dominant, but they're reminiscent of zombies these days.