Don't feed the troll.

The dude doesn't know anything about databases.

I know that many practical databases already exist and where I come from refining or improving something that already exists hardly qualifies as "deep tech". Is PepsiCo doing deep tech research on Crystal Pepsi?

However, the commenter I was responding to apparently considers just about _any_ research in any significant field to be deep tech so w/e I give up and I'll go update my CV to include the phrase "deep tech research"