technological progress

One question I've asked myself recently is How would the progression of science and technology be affected globally without European colonialism? Would technology progress slower then it did in OTL, or would the lack of colonialism allow for native cultures to progress faster scientifically...

The title is self-explanatory, really nothing much to add besides this question. In a world where 9/11 never occurs, how different does technology looks like today as of 2023? I would like your opinions on all tech, such as - computers, cellphones, artificial intelligence, buildings, vehicles...

Admittedly, I don't have a scientific mind. Every person who had the misfortune to try and explain mathematics, physics and chemistry to me will tell you so.:winkytongue: However, I've been toying with the idea of an alt-world (POD in the 12th century) in which solar power would've been used...

Paladin Wulfen Productions presents... Elysium..., to Roman America. A production that will try to last as long as the support it receives. Although this production uses recycled material from a previously made one, it is focused with greater dedication and exploration apart from a greater use...

This thread is not about discussing the notion of whether or not war is a social and technological catalyst. I personally believe WW II, apart from advancements in specific fields, was a net loss given that 50-60 million people died and the famines, genocides, political instability, civil wars...