>>
>> Over 2000 years ago, the ancient Romans & Greeks *knew* the
>> Earth was round
>> and orbited the sun. However, it seems all references to
>> that knowledge was
>> unavailable by the 1st millennium, when people once again
>> thought the world
>> was flat, and stayed that way for over 500 years. Had they
>> access to the
>> Roman and Greek libraries (assuming they existed, but I'd
>> bet they kept
>> their written documents somewhere) who knows what tech.
>> advances (or wars
>> averted) would have been possible.
>>
Or wars caused, or techonologies NOT invented because what they found was
"good enough".
Be careful of "what if" analysis.......