If you could teach everyone in the world one concept, what concept would have the biggest positive impact on humanity?
I would like to say how to manage their retirement fund but given that 9 out of 10 humans on earth live in the developing world it doesnt matter to the bulk of humanity. Kinda hard to start talking about portfolio re-balancing with a 3rd world rice farmer who sleeps with their ak-47.
Maybe basic sewing?
Either birth control or living off-grid/survival skills.
The benefit and value of mutual aid. Through the use of mutual aid, communal bonds are fostered and strengthened. Equality exists throughout, and no single person or group are able to exert their dominance over others. Without the existence of systematic oppression and exploitation, I feel the world would be a better place to live in.