A brain-dump about purity: this time, I think I really might change the world

When I was a plucky secondary school pupil, I had an idea for a perpetual motion machine. I was beyond excited. I was going to solve the world’s energy problems. I was prepared to accept that maybe there was a glitch in my design that I hadn’t realised, so I prayed earnestly that if I … Continue reading A brain-dump about purity: this time, I think I really might change the world