Stephen Hawking’s latest popular work (The Grand Design, written with physicist and author Leonard Mlodinow) seeks to answer questions that many have asked:
• Why is there something, rather than nothing?
• Why do we exist?
Hawking and Mlodinow (H&M) also pose a question which potentially answers the first two:
• Why this particular set of laws and not some other?
The answer, say H&M, is to be found in M-theory.
The trivial answer to the last question is that, if the laws were different, we would not exist and would not be asking any questions. But the observed laws seem to be very finely