If you get asteroids about a kilometer in size, those are large enough and carry enough energy into our system to disrupt transportation, communication, the food chains, and that can be a really bad day on Earth.

I believe in making personal sacrifices especially when i know the project that i am undertaking will solve a lot of problems for the common human, even for people who are 100s of kilometers away from me, and people i will never have a chance to meet in life.

I am very puzzled by the fact that young people are getting infected again. They don't take precautions despite an enormous amount of information. It's like riding a race car at 200 kilometers an hour. Some people like the risk.