Your IQ will drop 10% every year you are in a mainstream educational system

Your IQ will drop 10% every year you are in a mainstream educational system

While I do agree 💯 that the mainstream education system is designed to dumb the populations down, it seems that the maths ain't matching with your statistics here. If an average person started with an IQ of 100, after 12 years of education they would have a minus IQ of -20. Maybe this is where all the politicians fiit into your equation?
My maths is so bad. I gueyI just proves your point 😂.
From a 100 start what would be the result of a 10% decrees every year over 12 years?
If you start with 100 and reduce it by 10% each year for 12 years, the result would be:
Year 1: 100 * (1 - 0.1) = 90
Year 2: 90 * (1 - 0.1) = 81
Year 3: 81 * (1 - 0.1) = 72.9
Year 4: 72.9 * (1 - 0.1) = 65.49
Year 5: 65.49 * (1 - 0.1) = 58.6449
Year 6: 58.6449 * (1 - 0.1) = 52.61809
Year 7: 52.61809 * (1 - 0.1) = 47.355689
Year 8: 47.355689 * (1 - 0.1) = 42.8234689
Year 9: 42.8234689 * (1 - 0.1) = 38.54523369
Year 10: 38.54523369 * (1 - 0.1) = 34.794183569
Year 11: 34.794183569 * (1 - 0.1) = 31.5099186569
Year 12: 31.5099186569 * (1 - 0.1) = 28.35519256689
After 12 years, the result would be approximately 28.36. IQ
There, I just fact checked myself.