What was / is the greatest invention of all time?

[Outfits]

Water heater.

 

[Mday]

alyssa milano

 

[nickdakick]

dot com's of course.

 

[Topher]

I was gonna say sliced bread, but Mday got me thinking.....

 

[Midnight Rambler]

AC (as in alternating current), although Edison would disagree.

A close second would be Henry Ford's "assembly line" approach to manufacturing.

 

[mpitts]

Online forums...

 

[BigKev]

[suck up] The Mods [/suck up]

 

[Stosh]

How about the greatest marketing invention off all time.

POKE'MON

 

[vailr]

Money.

 

[Athanasius]

Creation

Ok, on a more human level, I agree with UG: Human language, including mathematics.

 

[OrByte]

Penecillin. Without penecillin the world would be a lonely place.

 

[CyberTiger]

fish