The BBC has an article asking if WiFi signals are damaging to us, especially children. In one example the investigators found that radio frequency radiation levels in some schools are up to three times the level found in the main beam of intensity from mobile phone masts.
I remember me and my brother spending hours typing code from a computer magazine into our Sinclair Spectrum. After several hours of coding, we were able to watch a ball bounce around the screen and change color when it hit a wall. That's it. But we were blown away!
Then we would start again on the next page of coding.
Kids these days get bored with several games in less time than it took us to code one screen.