Pat @Pat@qoto.org

@freemo

https://en.wikipedia.org/wiki/Newton

@Chrisleon27 @lefarfadet @freemo

Or it could mean this:

https://qoto.org/@Pat/107057949978351219

@freemo @lefarfadet

I laughed, then I got sad.

@freemo @lefarfadet

When I said, " ...just don't have brains that think a lot about..." I didn't mean they are stupid, I was referring to the way their brains operate, a personality trait not related to intelligence.

Yes, you're right. I think risk tolerance is something different than being accident prone. But then by bring very cautious about the way you approach the risky activity, you reduce the risk.

@freemo @lefarfadet
...they are accident prone as a result...

Then something like COVID-19 comes along and Darwin reigns.

@freemo @lefarfadet

Yeah, I think risk tolerance is a personality trait -- caution vs. risk; paranoia vs. complacency. Some people just don't have brains that think a lot about what can go wrong, and they are accident prone as a result.

@freemo @lefarfadet

Yeah, the commercial divers can rest up in tanks at pressure, but divers in the open water trying to set a record and deco in the water without a moon pool/chamber setup -- I think those guys would be limited by how long they could stay awake during a very long deco in the open water using scuba.

@freemo @lefarfadet

Moon pool. I never heard that term, but that's what I was actually thinking. I've seen them in movies, etc. Certainly seems safer than trying to hangout in the water for a day or so, I mean sleep/fatigue itself would be a limiting factor.

@freemo @lefarfadet

You mean entering or exiting a vessel at depth?

@freemo @lefarfadet

A lot of points of failure. I don't know why people take such risks.

I feel the same way about free diving records. Not worth it.

@freemo @lefarfadet

Yeah, fighter pilots need to be really fit, too, for G-forces as well as oxygen/brain function.

@freemo @lefarfadet

Yeah, at some point you need a pressure suit.

Also, at some point in diving you need a suit or vessel to withstanding pressures.

@freemo @lefarfadet

Mountain climbers and pilots face similar issues on the other end, at low pressures, with various limits at certain altitudes.

https://en.wikipedia.org/wiki/Effects_of_high_altitude_on_humans

https://en.wikipedia.org/wiki/Armstrong_limit

@freemo @lefarfadet

Plus the brain is so sensitive to breathing and the brain the one thing that's needs to operate well under those conditions.

@tedu

Yes, that would work too. That's not loophole I was thinking, but it'd work.

@freemo @lefarfadet

Wow. That's much more complicated than I thought.

No wonder there is so much training involved.

@freemo @lefarfadet

deco tanks?

Is that hyperbaric chamber? Or do you mean O2?

@freemo @lefarfadet

Yes, I've seen your cave-diving video -- very cool.

I was just trying to think of a way that you could run two cameras simultaneously. If you hire a video guy, I guess you're covered anyway. (Plus you've got an extra tank to buddy breath if something goes wrong.)

@freemo @lefarfadet

>120m

That's way down there! I think light is an issue at that depth.

The GOPRO is so small you could probably strap it to your arm or forehead or something as a bodycam and just not even think about it.

@freemo @lefarfadet

>and I have had quite a few lost videos before.

In that case, you better do both!