RubbrDinghyRapidsBro

Goes to show you how much age and body fat percentage figure into it. I used to swim for hours in 50-60 degree water as a kid (the beach, in winter) without a problem. But that's a slightly pudgy kid having a nice time swimming laps or to the end of a pier, rather than someone panicking and full of adrenaline.

Edit: but definitely don't do this. The cold shock is real, even when you're a kid. Not sure my heart could handle it nowadays. The first few minutes are intense.

Anecdotal, but people do nude or nearly-nude 'polar bear' dives all the time. Depends how long he was under the water for, and how those furs helped or hindered the shock. Cold shock, Google tells me, is barely worse at 35F than at 55F, which is probably why people can do those polar bear dips and survive.

Edit 2: BIG SPOILER!

Edit: also, magic. GoT world has lots of it, and John Snow has come back from the dead before.

I spent years producing reports that no one read (seriously, no one), working as a statistician in a manufacturing setting. It's depressing work.

Administering databases no one uses is a change of pace, at least.

What do you think of the 'eggbeater' technique of treading water, taught to water polo players? Sort of a sitting position, with one shin rotating clockwise and the other shin counterclockwise. We were taught that this was the most efficient way to tread water, and that it's the best method in case you're ever trying to attract attention if lost (keeping a high profile in the water as opposed to conserving energy by floating on your back). If this is wrong, what's the best way to tread water?