It is extremely arrogant for a lay person to say that a universe could or could not have come from nothing. Our intuition works on objects the size of apples. We already know that it is completely wrong when you try to apply that intuition on the atomic scale. So similarly we should not expect to be able to intuit how the universe works on a cosmic scale. We have to trust observation and math. Eventually, once we get familiar with how the universe works on a small and huge scale, our intuition will encompass those laws too.

~ Roedy (1948-02-04 age:69)