Hacker News: loeg

New comment by loeg in "Jane Street suffers $15B hit after meltdown at Situational Awareness"

loeg — Sun, 16 Aug 2026 05:22:40 +0000

> the costs paid by the market is the full operating budget of these companies plus their profits plus their negative externalities

Agreed.

> which combined ends up being significant

No. Combined, it is still de minimis. US equity markets alone trade something like $500B/day of volume or like $125T/year.

New comment by loeg in "Asus Bike Booster"

loeg — Sun, 16 Aug 2026 05:18:02 +0000

I wouldn't worry about it in this application, because the added weight and power is so minimal. Also: many of the cheap ebikes ($1000-1500 range) have absolutely terrible, underprovisioned brakes.

New comment by loeg in "Abdominal fat predicts heart disease risk better than BMI"

loeg — Sun, 16 Aug 2026 04:03:59 +0000

> Do not give yourself diabetes by eating vast amounts of sugar.

This can help sustain a high level of exercise (the more the better). Certainly don't if you're sedentary, but the sugar during exercise is really helpful for getting in 10+ hours/week of exercise.

New comment by loeg in "Abdominal fat predicts heart disease risk better than BMI"

loeg — Sun, 16 Aug 2026 04:02:36 +0000

Calls to the receptionist are universally free. Your hate on the US healthcare model (not without flaws) is detached from reality.

New comment by loeg in "Asus Bike Booster"

loeg — Sun, 16 Aug 2026 03:56:13 +0000

Bafang isn't, sure, but a hub motor is relatively easy. I guess hub front motor is even easier than hub rear.

New comment by loeg in "Asus Bike Booster"

loeg — Sun, 16 Aug 2026 03:32:53 +0000

Destroys tires, very limited range/power due to poor power delivery from motor to tire. Parasitic drag when coasting or battery is dead.

New comment by loeg in "Jane Street suffers $15B hit after meltdown at Situational Awareness"

loeg — Sun, 16 Aug 2026 02:16:46 +0000

Again, the costs are de minimis and they're just competing with other, slower market makers to provide the same service at lower costs and faster speeds. Who cares? Retail investors, rationally, should not care about this at all.

New comment by loeg in "Semaglutide linked to lower predicted dementia risk"

loeg — Sun, 16 Aug 2026 02:13:55 +0000

Back squats and deadlifts are both unreasonably effective, and impossible to load sufficiently with dumbbells.

New comment by loeg in "Semaglutide linked to lower predicted dementia risk"

loeg — Sun, 16 Aug 2026 02:13:15 +0000

Totally understand the young kids thing. Good luck.

New comment by loeg in "Asus Bike Booster"

loeg — Sun, 16 Aug 2026 02:11:46 +0000

Get a Bafang kit or a hub motor replacement rear wheel instead. At least those systems work well.

New comment by loeg in "Asus Bike Booster"

loeg — Sun, 16 Aug 2026 02:10:40 +0000

In addition to the theft concerns, it's also not a great product.

New comment by loeg in "Semaglutide linked to lower predicted dementia risk"

loeg — Sat, 15 Aug 2026 19:40:00 +0000

Maybe start lifting weights again? 50 isn't a death sentence; I know a lot of competitive 50s-year-olds.

New comment by loeg in "Jane Street suffers $15B hit after meltdown at Situational Awareness"

loeg — Sat, 15 Aug 2026 19:38:10 +0000

> it's certainly zero sum over the millisecond-term.

Why do you think market-making is zero sum? Providing liquidity has value and market makers are compensated for that. (Milliseconds of liquidity being appropriately compensated with fractions of pennies.)

New comment by loeg in "Jane Street suffers $15B hit after meltdown at Situational Awareness"

loeg — Sat, 15 Aug 2026 19:35:07 +0000

And they are steadily losing new investment dollars to ETFs, which trade interday. I don't think interday trading is why ETFs are more attractive to all or most investors, but a 0.000001% (or whatever) cost advantage just falls below the noise floor. It isn't worth any other tradeoff.

New comment by loeg in "Firefox is now the last major browser that still supports uBlock Origin"

loeg — Sat, 15 Aug 2026 19:32:46 +0000

Is this supposed to be a dunk? uBO Lite also blocks YouTube ads.

New comment by loeg in "Semaglutide linked to lower predicted dementia risk"

loeg — Sat, 15 Aug 2026 19:31:36 +0000

> If this is caused by the weight loss, it is a little disappointing that public health didn't act quicker

Public health has been trying to get obese people to lose weight forever, what are you talking about. We've known it's bad in enough other ways. It was just really, really hard (at a population level).

New comment by loeg in "Semaglutide linked to lower predicted dementia risk"

loeg — Sat, 15 Aug 2026 19:28:12 +0000

I'm on tirzepatide, a competitive athlete, and have no idea what GP is talking about.

New comment by loeg in "Jane Street suffers $15B hit after meltdown at Situational Awareness"

loeg — Sat, 15 Aug 2026 07:25:46 +0000

No one wants four-trades-a-day settlement to save 0.00001% or whatever in trading fees.

New comment by loeg in "Jane Street suffers $15B hit after meltdown at Situational Awareness"

loeg — Sat, 15 Aug 2026 07:24:15 +0000

PFOF and HFT are distinct concepts, but they are widely conflated in this thread. I don't agree that PFOF is inherently bad, but even if it were: it is not a valid criticism of HFT.

New comment by loeg in "Firefox is now the last major browser that still supports uBlock Origin"

loeg — Sat, 15 Aug 2026 05:45:31 +0000

Well, Edge probably counts. I agree about the others.