Hi! I am Jimmy Zhang and I live in Maastricht, the Netherlands. I was also an alumni of United World College Changshu China. I am passionate about PKM (Personal Knowledge Management). I open-sourced all of my notes and knowledge at https://jimmyzhang.space -- just uploaded the April update. I am a big believer of learning in public. I call myself an education optimist, as only the critics are the true optimists. I believe in leveraging the power of education to shape the future of humanity.