Ok, let me give you some more details. The first guy I knew was a friend when I was studying. He studied Electrotechnical engineering at university level, a highly mathematical study and when he started he was quite good with it.
However at the same time when he started the study he also started using Cannabis a lot more, up to the point that he was smoking all day long.
I used to play games with him like poker and backgammon, both games where you can use both your intuition and your rational brain. Over time he basically gave up trying to calculate or reason things, he just relied on his intuition, which didn't improve his game. At the same time his study results started to crash as well. This all didn't happen at once, it took several years.
The second guy I knew was a guy I met when I was playing backgammon in a café. I tried to explain him some things about the game that involved some very basic probability calculations but he stopped me and told that he had been smoking weed for 20 years and had lost capability to do calculations in his head.
> I tried to explain him some things about the game that involved some very basic probability calculations but he stopped me and told that he had been smoking weed for 20 years and had lost capability to do calculations in his head.
The second guy I knew was a guy I met when I was playing backgammon in a café. I tried to explain him some things about the game that involved some very basic probability calculations but he stopped me and told that he had been smoking weed for 20 years and had lost capability to do calculations in his head.