I can be much more productive these days because I have the information resources on the internet. In the early days, for example, I'd mail order books and wait weeks for them to arrive, and hope they had what I needed in them.

I also collaborate with people all over the world. That simply wasn't possible in the 1980s. I'd mail floppy disks internationally, and would use the fax machine for communication (at a dollar a page!).