Can we cure all diseases in our children's lifetime?

Can we cure all diseases in our children's lifetime? Mark Zuckerberg and his wife have this question to us. They have a great goal. we hope the answer is "yes".

I'm an engineer, and I think this hope is part of the engineering mindset. It's the belief that you can take any system and make it much better -- whether it's code, hardware, biology, a company, an education system, a government -- anything. ----From Mark.