I like the spirit of what you are saying but the smart part isn’t true at all. IQ peaked around the mid 1990s and as someone that lived back then that tracks.

https://www.sciencedirect.com/science/article/pii/S016028962...

Look at Fig. 3. The world seems to be experiencing a reverse Flynn effect.

The reversal of the Flynn effect is more likely explained by other factors such as the explosion of social media, endless addictive entertainment, and all the attention manipulation that comes with it. Conception didn’t change that much at a large enough scale during this short time period to explain it.