My father learned to program in FORTRAN in the 70's. He used punched cards, wrote his code, left the batch of cards at the computer operator and came back a few days later to get the printed results of his program. Sometimes the results were "syntax error in line 11". He never saw the computer but he learned to think before writing.

I met some real old people who used to print their code on paper for review. They made annotations, spent some time reading it like old people used to do with newspapers. They thought about it, sometimes discussed about it, you could see the code was carefully studied out by marks of coffee or cigarette ash.

I learned to program on 8-bit 80's home computers. I later turned to IDE's on PC's. I was impressed by the apparent gain in productivity. I then tried to use linux as old time unixers did. I was impressed that I could feel and sometimes even see what was happening. I saw some great and productive coders who used nothing else than a well configured programming text editor and a terminal. For me that was the most productive and advanced way to write code. I didn't change my mind even after using jetbrains IDE's.

I then became a teacher. I saw students who couldn't tell the difference between a programming language and an IDE. I heard people say java was much better than C and asked why; they explained how great eclipse was. I saw students who were not really writing code, they were writing some random code here and there and waiting the IDE to suggest corrections.

One day I said: "Today we'll write code, but we'll do it on pen and paper first and then we'll type it." After a few days, their skills clearly improved. Syntax errors were rare, off-by one errors mostly disappeared and they started thinking before writing.

I'm not against IDE's, but it is easy to get bad habits because of them. I don't think IDE's are a good replacement for a terminal with a good set of tools. They can improve productivity of good and experienced developers, but when used as a complement, not as a replacement.