Question #1: 432 Hz Tuning

I'm a software engineer who writes music as a hobby. Recently I have bumped into the topic of 432 Hz tuning in music. You can find a lot of 'information' about this all over the internet. The basic premise here that once upon a time, musical instruments were all tuned so that the note A4's frequency was 432 Hz, which is 'said to be mathematically consistent with the patterns of the universe'. Then Nazi Germany came along and deliberately changed the standard to 440 Hz which is the most common tuning today, 'after conducting scientific researches to determine which range of frequencies best induce fear and aggression'. I was pretty saddened to find out that there are musicians who actually believe all of this. The 'advocates' of this even go as far as claiming that listening to music tuned to 432 Hz can cure cancer and other medical conditions. I believe that this topic might be an interesting one for you guys to discuss in the podcast. Please feel free to contact me if you need more information on this subject. Best Regards, Nissim