1. Hot reloading in Java. I wasn't aware of Erlang at that time. 2. Erlang. It was a 10x boost after doing a whole lot of CORBA/J2EE crap. I was quite late t

1. Hot reloading in Java. I wasn't aware of Erlang at that time. 2. Erlang. It was a 10x boost after doing a whole lot of CORBA/J2EE crap. I was quite late to the party even in the mid-90's. 3. Google search, maps compared to offerings from Altavista, Excite. 4. Turbo Pascal compared to anything else before it. I don't think I have experienced that level of programming pleasure since then. 5. HotJava on the browser. It was sad how Microsoft neutered the whole Java on the browser initiative. 6. Git. So much faster and pain-free compared to SCCS, RCS ..