You can still say type systems are obviously a good thing (I do too!). But you, sadly, can't say this is supported by scientific studies. It's an opinion based

You can still say type systems are obviously a good thing (I do too!). But you, sadly, can't say this is supported by scientific studies. It's an opinion based on your own personal experience. The good news is that this opinion doesn't contradict evidence either! The research just isn't there yet. Some of research I've seen so far is pretty bad.