What would be your favorite "what if" alternative development in technology? This could be the one you simply think is the "coolest" or one which you believe really could have had major impact on history. Sorry, this would be a poll, but I haven't figured out how to do this.
(1) No domestication of horses
(2) Earlier (pre AD1000) invention of hot air balloons or man-carrying gliders
(3) No powered aircraft (planes or airships) ever, or until 1930
(4) Steam powered cars rule roads
(5) Zeppelins rule the skies in 1980
(6) No atomic weapons
(7) German jets operational in wide service in 1943
(8) No jets for another 20 yrs
(9) No Soviet Space Program
(10) Solid state electronics 30 years earlier than OTL
What would it take for these alternatives to develop and what might effects on broader history/culture be?
(1) No domestication of horses
(2) Earlier (pre AD1000) invention of hot air balloons or man-carrying gliders
(3) No powered aircraft (planes or airships) ever, or until 1930
(4) Steam powered cars rule roads
(5) Zeppelins rule the skies in 1980
(6) No atomic weapons
(7) German jets operational in wide service in 1943
(8) No jets for another 20 yrs
(9) No Soviet Space Program
(10) Solid state electronics 30 years earlier than OTL
What would it take for these alternatives to develop and what might effects on broader history/culture be?