Software development topics I've changed my mind on

> ORMs are the devil in all languages and all implementations. Just write the damn SQL

It depends on what you're writing. I've seen enough projects writing raw SQL because of aversion to ORMs being bogged down in reinventing a lot of what ORMs offer. Like with other choices it is too often a premature optimization (for perf or DX) and a sign of prioritizing a sense of craftsmanship at the expense of the deliverables and the sanity of other team members.

It's not so much optimization but experience that on any sufficiently large project you gonna run into ORM limitation and end up with mix of ORM and direct queries. So might as well...

Starting with raw SQL is fun. But at some point you find out you need some caching here, then there, then you have a bunch of custom disconnected caches having bugs with invalidation. Then you need lazy loading and fetch graphs. Step by step you'll build your own (shitty) ORM.

Same thing for people claiming they don't need any frameworks.

As SRE who dealt with more caching errors then I care to. Alot of caching comes down to YAGNI.

To his point: It's very hard to beat decades of RDBMS research and improvements

Your RDBMS internal caching will likely get you extremely far and speed difference of Redis vs RDBMS call is very unlikely to matter in your standard CRUD App.