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I had lots of fun with this one:
to much LDS you end up with dyslexia.
Not supporting LSD here, btw. About listening to surroundings while exercising, I have to mention that bone conduction earphones are pretty trendy amongst runners and cyclists... It's a bit like having a background music in a movie, while still being able to hear perfectly clearly what's going on around (except if you put volume really too loud). https://piped.video/watch?v=M3xrcsCGnSY
I think it is personal choice, but do agree its a dangerous thing to do. Personally I would never wear headphones on a bike or in a car. I do see people do this. I dont feel safe on a bike unless I can hear what is around me.
I do recall that LSD was first experienced whilst riding a bike.
https://www.bikingbis.com/2013/04/19/worlds-first-lsd-trip-happened-on-a-bike-ride/
NOTE: I am not advocating LSD and would never do it. Besides if you take to much LDS you end up with dyslexia.