![Elephants in a Sri Lankan dump are dying from eating plastic rubbish.](https://masekoprasetyo.com/wp-content/uploads/jason-zhao-eeu3pOcU0h0-unsplash-min-1.jpg)
Most of us have, at some point, considered what we would do if we could travel back in time. Maybe we would give ourselves some hot investment advice and become millionaires, or change history for the better, or witness our favorite historical event. One year ago, I left San Francisco, sold and gave away everything…