“In the entire history of the company, I think we only ever had one or two bugs reported by a customer.”
The FoundationDB team wrote a deterministic network simulator before they wrote the database, and claims one or two customer bug reports ever. Apple bought the company in 2015. The same engineers then found nothing like it inside other big tech firms, where senior people burned months chasing production bugs. Antithesis spent five years in stealth building a hypervisor that forces any software to run deterministically. MongoDB, the Ethereum Foundation and Palantir already pay for it, which says plenty about how well everyone else tests.