The test that are written today will not cover future cases 30 years down the road. Code bases 30 years ago are not the same shitty code bases you see today.

The test that are written today will not cover future cases 30 years down the road. Code bases 30 years ago are not the same shitty code bases you see today. Programming was more difficult and required better programmers who wrote better code on average. TDD is needed today because the bar has been lowered and it acts as a safety net.