There are legit startups out there that do change the world. Most of them are not companies that you've ever heard of. I think that companies that change the w

There are legit startups out there that do change the world. Most of them are not companies that you've ever heard of. I think that companies that change the world satisfy the following criteria: 1 - their work is very hard to replicate. Not impossible, but it would take a competitor a long time to reproduce their product or service. 2 - people would notice a tangible impact on their life if the company disappeared tomorrow.