Hi, co-creator here.

1) More electricity it used, but it has some benefits. What is the social and financial cost of data breaches and identity theft? Hopefully at scale a system like Enigma can help with that.

2) At scale, you are correct. Blockchain scaling is a problem that a lot of people are working on, hopefully it will be solved in one way or another. If it doesn't, we'll need to find another solution or Enigma will fail.