I remember programming a TRS-80 Model I with 4k of memory and thinking I'd never write a program to fill "All that memory". Soon after the owner of the compute

I remember programming a TRS-80 Model I with 4k of memory and thinking I'd never write a program to fill "All that memory". Soon after the owner of the computer (My High School Physics teacher) coughed up money to upgrade it to 16k. Then I was convinced this is it.. I'll never use all that memory. Today I was working on a program that will service BILLIONS of transactions per day and 100,000's of queries per second and consume terrabytes of memory across many machines.. What a difference a couple years makes! :-)