I grew up transcribing long computer code from the back of computer magazines into our family's Commodore 128. Hitting enter and crossing my fingers hoping there were no syntax errors in line 1 jillion. There usually were typos, but once you finished all those days of typing, you'd rendered a very basic game that would draw a square or something very simple. Then there was ZORK. You'd type in "go straight" or something like, "look in cabinet" ... this is all with no visuals, but based on what you typed, the program would tell you the results. Like what you would see, smell or bump into. With no graphics, only sentences on a screen, it was theater of the mind. And then the usual came after from things you've heard, Pac Man, Tapper, Atari, Coleco Vision, etc. etc. etc. But I just think it's crazy that at 42 I remember a time before video games and now get to play ones with such vivid graphics and structured story lines and it's still theater of the mind.