Search found 9 matches

by Konrad
Wed Sep 25, 2019 9:06 pm
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

Also, we may be frustrated over bad options, that’s true. Yet our position is no worse than that of every single person who ever lived. But to clear, my view of cryonists was no reflection on you but is based on the former CryoCare/BP folks. Do you know anything about what led them to break apart, b...
by Konrad
Wed Sep 25, 2019 8:44 pm
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

In hindsight, my assumption on who the professionals are has really just been the former CryoCare/BioPreservation team. I base that not on a whole lot of systematic thought, but a subjective impression of the Cryonics publications I read in the early 2000s, most of which were by then a decade out of...
by Konrad
Sun Sep 22, 2019 11:20 pm
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

I guess it depends on what you mean by cryonics professional. In theory, the people at SA are professionals since they are paid for cryonics services. On the other hand, there are complaints about their competence from some long-time cryonicists with far more experience doing standby & transport...
by Konrad
Fri Sep 20, 2019 6:49 pm
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

That did come from MD, in fact. The oxygen issue bugged me after you mentioned it. I couldn’t come up with a good explanation so I went straight to the source. I get your point about people not dying in pristine condition, but you have to start somewhere and work your way up. This isn’t a moon shoot...
by Konrad
Thu Sep 19, 2019 8:37 pm
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

Correction: Oxygen is necessary to prevent sludging of red blood cells and edema, which otherwise halt brain perfusion after ~15 minutes. Whether it’s worth the damage done by the oxygen is another issue, but from pure cryonics perspective it makes sense. Jordan, would your cannulation method also w...
by Konrad
Sun Sep 01, 2019 6:08 pm
Forum: Forum
Topic: ASC vs Vitrification
Replies: 7
Views: 1546

Re: ASC vs Vitrification

You might end up like your own mitochondria, that is, slave labour powering the industrial machinery of your captors’ cells. And that’s one way to smuggle yourself into the future. It’s actually how I got here. My grandparents were captured by the Germans for use as slave labor by the the nazi war m...
by Konrad
Sun Sep 01, 2019 5:37 pm
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

To be honest, I suspect that there is no good reason to use fluorocarbon ventilation in cryonics. Water gives better cooling and any gas will do. (The gas is only there to cushion the liquid for better flow.) The whole oxygenation thing is strange, now that I think of it. It seems obvious in hindsig...
by Konrad
Fri Jun 21, 2019 1:24 pm
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

How slow is too slow? You get 1 degree C a minute in dogs with a working heart. That’s a lot of cooling going straight to the brain and kidneys. Peripheral circulation is essentially nonexistent at that point. Of course, humans have proportionally bigger brains, and in our case, external compression...
by Konrad
Fri Jun 21, 2019 8:16 am
Forum: Forum
Topic: Wait but Why
Replies: 23
Views: 3950

Re: Wait but Why

What surgical technique gives you perfusion in under a minute? Why not cool using liquid ventilation?

I expect that the same 1kW heat exchanger CCR uses on dogs would beat Alcor’s best-case cooling with PIB + thumper.

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