I get the skepticism, but these core SaaS offerings tend to have a much longer support life than consumer products. Google’s Bigtable is still around as a cloud offering, and it’s almost 20 years old at this point.

Spanner is used for a lot of internal Google services, too. Spanner has basically been eating all the other databases Google uses internally. Nom nom nom, every database that used to be something else is now Spanner.