Hacker News: HeadsUpHigh

New comment by HeadsUpHigh in "New research reveals longevity gains slowing, life expectancy of 100 unlikely"

HeadsUpHigh — Sun, 31 Aug 2025 09:34:53 +0000

>Sleeping well, eating well and exercising does work. Science about this is well-established. So why arent we?

Those will give you at best another marginal decade. By all means worth doing but its not radical life extension. At the same time a young body can take lack of sleep and can physically perform even if not exercising much better than an old one. So there's more to it than just lifestyle.

New comment by HeadsUpHigh in "New research reveals longevity gains slowing, life expectancy of 100 unlikely"

HeadsUpHigh — Sun, 31 Aug 2025 09:33:05 +0000

Most longevity enhancing interventions that have worked in mice have extended healthspan and lifespan at the same rate.

New comment by HeadsUpHigh in "CO2 Battery"

HeadsUpHigh — Sat, 26 Jul 2025 06:46:35 +0000

The volume of batteries wasn't there, neither did we really have the network to sell scrap batteries like we do with used cars.

New comment by HeadsUpHigh in "Ukraine destroys more than 40 military aircraft in drone attack deep in Russia"

HeadsUpHigh — Mon, 02 Jun 2025 07:42:31 +0000

I still don't understand how Putin managed to convince so many people that a rule that exclusively works to his benefit is a good idea. Weak of mind.

New comment by HeadsUpHigh in "Buffett to step down following six-decade run atop Berkshire"

HeadsUpHigh — Sun, 04 May 2025 10:00:11 +0000

>the bigger picture to carry most people forward

The bigger picture of getting germany dependent on russian gas while screwing eu allies.

New comment by HeadsUpHigh in "Mark Zuckerberg says social media is over"

HeadsUpHigh — Thu, 24 Apr 2025 15:51:12 +0000

>For a lot of content Facebook groups are much better than forums

Facebook groups are very disjointed and the algo does a bad job and keeping the good bits floating to the top.

New comment by HeadsUpHigh in "Fossil fuels fall below 50% of US electricity for the first month on record"

HeadsUpHigh — Tue, 22 Apr 2025 12:47:08 +0000

>lucky for humanity

perhaps the word lucky isn't the correct one, since lots of people worked hard to push for the initial government programs that kick-started the economies of scale. And Tesla for making viable EVs both a reality as well as desirable for a growing chunk of the population.

New comment by HeadsUpHigh in "US probes Tesla's Full Self-Driving software after fatal crash"

HeadsUpHigh — Mon, 21 Oct 2024 06:40:39 +0000

>What model year? I'm guessing it's an older one?

Not 100% sure which year since it wasn't mine I think around 2018 +-2y. It was good at following bright painted white lines and nothing else. I didn't mind the beeping and the vibration when I stepped on a line but it wanted to actively steer the wheel which was infuriating. I wouldn't mind it if it was just a suggestion.

New comment by HeadsUpHigh in "US probes Tesla's Full Self-Driving software after fatal crash"

HeadsUpHigh — Sat, 19 Oct 2024 06:47:02 +0000

Ive had similar experience with a Hyundai with steering assist. It would get confused by messed road lining all the time. Meanwhile it had no problem climbing a road curb that was unmarked. And it would try to constantly nudge the steering wheel meaning I had to put force into holding it in place all the time since it which was extra fatigue.

Oh and it was on by default, meaning I had to disable it every time I turned the car on.

New comment by HeadsUpHigh in "Surgeons Cut a Giant Tumor Out of My Head. Is There a Better Way?"

HeadsUpHigh — Sun, 18 Aug 2024 09:33:47 +0000

Radiosurgery has it's limits and also horrible side effects esp in CNS tumors. If the tumor can be accessed without damaging too much healthy tissue and it's a histological type that has clean borders you are probably better off cutting it out.

New comment by HeadsUpHigh in "Story of Vitamin D Toxicity (2022)"

HeadsUpHigh — Mon, 18 Mar 2024 21:03:47 +0000

The audacity to believe you know everything about this subject.

Super-high dosages are used in loading protocols before switching to a smaller maintenance dosage.

New comment by HeadsUpHigh in "Private company landing on the moon today"

HeadsUpHigh — Thu, 22 Feb 2024 20:08:38 +0000

The decline in price per kg from Falcon 9 has made a big difference and yet it's nowhere near as impactful as Starship is going to be... falcon 9 is either too powerful for LEO missions and limited by fairing volume( so can't really launch space stations on a falcon 9) or too weak to push further into GEO and into the solar system. Starship will enable a lot of LEO applications previously unthinkable.

New comment by HeadsUpHigh in "Over 2 percent of the US's electricity generation now goes to Bitcoin"

HeadsUpHigh — Sat, 03 Feb 2024 07:59:31 +0000

A large fraction because they get the energy almost for free. In Brazil they are using mining to compensate for the low viability in financial terms.

New comment by HeadsUpHigh in "Over 2 percent of the US's electricity generation now goes to Bitcoin"

HeadsUpHigh — Sat, 03 Feb 2024 07:57:11 +0000

With mining you can reduce the cost basis of solar significantly.

New comment by HeadsUpHigh in "Over 2 percent of the US's electricity generation now goes to Bitcoin"

HeadsUpHigh — Fri, 02 Feb 2024 23:00:05 +0000

It incentivizes building excess capacity. All you need is dynamic pricing so miners stop when there is grid demand. Texas is using this approach.

New comment by HeadsUpHigh in "Over 2 percent of the US's electricity generation now goes to Bitcoin"

HeadsUpHigh — Fri, 02 Feb 2024 22:57:41 +0000

That is exactly the type of thing that miners that seek to capture wasted energy do.

New comment by HeadsUpHigh in "Google and AT&T invest in Starlink rival for satellite-to-smartphone service"

HeadsUpHigh — Tue, 23 Jan 2024 10:47:08 +0000

Nobody is getting at spacex pricing any time soon. New Glenn is the only comparable vehicle and as far as we can tell it's not going to be launching in the forseeable future.

New comment by HeadsUpHigh in "Mice eating less isoleucine live longer, healthier"

HeadsUpHigh — Sun, 26 Nov 2023 10:04:49 +0000

>I also think the conclusion of the research and the poster you responded to is rather wrong. It doesn't matter how long you live if that longevity isn't pleasantly usable.

Agreed. The "human body is a battery" type of arguments are a common misconception and have their roots on the fact that the only positive thing we've found about inflammation so far is that it's an integral part of muscle growth as a response to exercise stimuli/stress via the mtor pathways. But that's a one-off you don't need continuous inflammation to maintain your muscle and enjoy the long term benefits of it.

Oh and the plant based protein is also wrong as that protein is 99% of the time incomplete. You need multiple sources.

New comment by HeadsUpHigh in "Mice eating less isoleucine live longer, healthier"

HeadsUpHigh — Sat, 25 Nov 2023 08:56:46 +0000

There is a statistically inverse relationship between diameter of the muscle mass of the legs and dementia[1]. Higher muscle mass has more capacity to store glycogen and in a higher priority than insulin-activated GLUT receptors which in tern means less glucose and insulin spikes. And we do know that high glucose levels are inflammatory.

Point being, a more anabolic lifestyle with higher muscle mass has direct benefits in metabolic syndrome and cognitive decline, so your trade-off is incorrect.

[1] https://jamanetwork.com/journals/jamanetworkopen/fullarticle...

New comment by HeadsUpHigh in "Cryptographers solve decades-old privacy problem"

HeadsUpHigh — Sat, 18 Nov 2023 23:44:56 +0000

zk proofs are used in public blockchains to transmit millions in value so I would assume they aren't vulnerable to side channel attacks at least not on a superficial level.