Our ancestors tried to make sense of the world around them. Some things seemed to make sense quite readily. Other things appeared to need an explanation that was outside anything they could experience, so they thought up explanations that seemed to make sense, but were not contemporarily testable.

Modern cosmologists try to make sense of the cosmos. Some things seem to make sense quite readily. Other things appear to need an explanation that is outside anything they can experience, so they think up explanations that seem to make sense, but are not currently testable.

There never was nothing.