I remember significant outages of S3, Gmail, and Heroku last year. So to me, it looks like they also don't reach five nines uptime.. . Also, I'm not convinced

I remember significant outages of S3, Gmail, and Heroku last year. So to me, it looks like they also don't reach five nines uptime.. . Also, I'm not convinced that it's needed for a normal product. When my work Gmail was offline, I just had lunch early and then later it worked again. A single founder offering higher availability than Gmail sounds like a masochist to me.