00:04We live on an ancient planet that's constantly remaking itself.
00:08What if instead of talking about it, I actually went to the places that best illustrated them?
00:13What if I traveled to the oldest and newest places on planet Earth?
00:19Woo!
00:23There's a trail that goes right through here, but it's a six-mile hike, and it's an unmarked trail.
00:28Oh, this whole thing is like a tube.
00:30From there, we'd have to go off-trail for at least a mile and a half or so.
00:34So, technically speaking, illegal.
00:42We're going to be guides through time.
00:44I'm kind of having trouble even processing that sometimes.
00:47These are the oldest rocks we know of on maybe our planet.
00:50It's a 4-billion-year-old rock, a 3.7-billion-year-old rock, a 3.9-billion-year-old
00:54rock.
00:55Maybe this is a proto-continent.
00:56Proto-continent.
00:58I have to sit with that one for a minute.
01:00That's wild.
01:02The landscape here is changing so quickly, so if I'm on a field shift, nobody will ever
01:07look at this exact same landscape and see it.
01:09Hawaii is ephemeral.
01:12What does 4 billion years actually mean?
01:14That's really hard to comprehend.
01:16You think more deeply about things other than rocks when you're sitting on these rocks.
01:21The oldest set of place names had to do with where the larger animals would dwell.
01:28You're talking about like mammoths and mastodons?
01:30Well, we just call them large animals.
01:48It's our planet.
01:51This is how everything starts.
01:58You're thinking about like Kindergarten.
01:58But it's Minnesota.
01:58Here we go.
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