Well yes ofc this is an old "discovery". Boletes are known choice edibles around the world so ofc people would discover that if they undercook this mushroom they would trip. We even have some written history about it:

> The Chinese Daoist Ge Hong wrote in Baopuzi (The Master Who Embraces Simplicity) around 300 CE that eating a certain wild mushroom raw would result in attainment of transcendence immediately, suggesting that the mushrooms may have been known for thousands of years.