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Mike
Carruthers:
All
we really have is time. It's a common expression, but when you
think about it, what exactly is time?
Brian Greene:
Time in particular is one of the most puzzling concepts
that we as humans have ever come upon.
Physicist and
professor Brian Greene, author of the book The
Fabric of the Cosmos...
And the reason
it's so puzzling is that we experience time, we all know what
it means to feel time flowing to the future. The real strange
thing, however, is that as science (and physics in particular)
has come to understand time, those basic features that we all
experience are not there - they're not there on the map.
We intuitively
know what "now" means, "now" means "now",
but Brian says...
Physics seems
to have no special notion of "now"; in fact, Einstein
had a real famous quote where he said physics is unable to give
any special meaning to what we intuitively call "now",
this moment. So when you had your breakfast this morning, in
some sense, according to physics, you still are having your
breakfast there this morning, because that's one moment in a
grand expanse of a static time, if you will, that in a way it
resembles more space then the intuitive notion of time itself.
For transcripts
and our free online newsletter visit our website: somethingyoushouldknow.net
- I'm Mike Carruthers and that's Something You Should Know.
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