Some questions about 6×01 “LA X”

I’m on the East Coast this week, so I got to see it earlier than usual.

That was mind-boggling. Loved the way it started twice, first in the sky, then on the Island. It’s like everyone gets to be right — the people who thought there would be a time reset AND the people who thought there wouldn’t.

Out of all the many questions raised in the episode, these are the questions that are melting my mind the most:

1. How can they be in two places at once? WTF?

2. Who are those other Others?

3. NotLocke seemed to admire RealLocke, in a way. Is that why he chose him to impersonate?

4. How did Sayid come back to life?

5. How did Juliet know the bomb worked?

6. Why does sand create a barrier that NotLocke/Smoky can’t cross?

7. Why is there a space in the title?

Screenshot of the temple is from lost-media.com.