Human history is filled with the discoveries and inventions of man. We have always sought to do things better, faster, more efficiently, more cost-effective, etc. If you were to give it a little thought, what do you think has been the single most influential advancement made by man throughout history? The wheel? Fire? Running water? The Internet? Scientific or medical progress? Do you believe the advantages of all of these have outweighed the potential negatives, especially in recent decades? Call with your take on Thursday.