Comment by pizlonator

It's acceptable to state, without evidence, that functional programming and static typing make things more reliable.

But this isn't a falsifiable claim. We cannot possibly know if this is true or not.

- Not all of banking and telecom use functional programming or even static typing.

- Functional programming often leads to write-only incomprehensible code; the exact opposite of what you need to have a reliable system.

- There's no hard evidence that static typing improves reliability. Only vibes and feels.