I have just finished reading the book "A Brief History of Time" by Stephen Hawking. An interesting book but it's difficult for those who do not know science. Some of his questions raised in the book are very very difficult to answer but enlighten. I have chosen a few of them:
1. after the beginning of the universe since the big bang, the universe is expanding, but if the universe stops expanding and starts contracting, are we heading to the big collapse?
2. why do we exist in the universe, at this moment, and for what purpose?
3. why does the universe exist, and for what purpose?
These questions put you in deep though. What do you think?
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