00:01
Okay, so we're in problem four here.
00:04
We're talking about services that are unseen.
00:08
And so what is meant by that? they're unseen is that they're sort of indirect, right? so a direct service would be like using a plant for medicine.
00:23
But so our indirect services are indirect services are going to be something more like, for the example.
00:31
For this problem would be the prevention of soil erosion.
00:41
So of soil erosion.
00:44
And so it's not something we really think about too much, right? but it is certainly valuable, right? because for example, soil erosion near the site of a bridge could cause a collapse or near a dam.
01:06
And that can cause a lot of damage, right? so without it, there could be a lot of damage.
01:17
So without equals damage.
01:21
And so if we want to continue down our list of items here, people really only notice it.
01:33
Only notice when disrupted, right? so only notice with disruption.
01:43
And this is, like i said, because soil erosion near an infrastructure, so if you have a bridge, i mean, you're not really going to notice anything, right? it's like a river here until the time comes when on these shores the soil has eroded and your bridge collapsed...