posted on Oct, 5 2019 @ 11:13 PM
I'm going to go with the computer.
Everything else has been a duplication, or an enhancement on our physical abilities. Lift more, travel faster, do more, etc. Nearly all things we
could do if we had enough physical manpower.
The computer helped us with mental tasks the way a forklift helps us with physical tasks. Imagine if we had some form of computers 100, or a 1000
years ago. Imagine a mind like DaVinci with CAD programs, spreadsheets, and internet.
Of course, Davinci may never had invented anything, as he was too busy clicking ads for lonely hot ladies in his area who were looking for hookups