pksohn (u/pksohn) - Readit News

pksohn commented on Momofuku Ando invented instant ramen (2016) vox.com/2015/3/5/8150929/... · Posted by u/thunderbong

eimrine · 2 years ago

> Sodium for days

What is the meaning of this statement?

pksohn · 2 years ago

"X for days" just means "a lot of X".

pksohn commented on FedNow Is Live federalreserve.gov/newsev... · Posted by u/lavp

semiquaver · 2 years ago

Apologies if I’ve misunderstood you (edit: I have) but assuming you are saying that 1ms to transfer funds between banks is ridiculously slow, why do you say that?

Light travels about 300km in one millisecond in a vacuum, about 200km in optical fiber. The best achievable theoretical fiber optic RTT for NYC-LA is about 35-40ms. In practice 65ms+ is more realistic due to routing overhead and the fact that cables aren’t always laid in a great circle. This being a financial API with three parties involved in most transactions (the two banks and the fed clearinghouse) there is sure to be more than one round trip involved for TLS establishment, authentication, verification of funds and account availability etc, many of which involve traversing many inevitably complicated systems on each side. It would shock me if such a system could realistically target anything less than 500ms P50.

pksohn · 2 years ago

I believe the comment you replied to was suggesting that 1ms is infeasibly fast.

pksohn commented on Investigating the impact of HTTP3 on network latency for search dropbox.tech/frontend/inv... · Posted by u/kiyanwang

chrisweekly · 2 years ago

Related tangent: highest possible recommendation for https://hpbn.co/ (High-Performance Browser Networking), an extraordinarily helpful book and website.

pksohn · 2 years ago

I second this recommendation, but note that this book predates and does not cover HTTP3/QUIC.

pksohn commented on Give babies peanut butter to cut peanut allergies, study says bbc.com/news/health-64987... · Posted by u/tosh

pksohn · 2 years ago

I have a two year old with a moderate peanut allergy. I'm convinced that early introduction at 6 months and oral immunotherapy have saved him from a more severe allergy.

Interestingly, multiple allergists we've spoken to have alluded to a recent theory (not sure if supported by the literature) that a child is more likely to develop an allergy if the allergen is first introduced through the skin than through the gut, especially if the skin exposure involves inflammation like eczema. Their advice was to make sure new allergens get in the mouth and not all over the skin early on.

pksohn commented on Badly educated men have not adapted well to trade, technology or feminism (2015) economist.com/news/essays... · Posted by u/mathieutd

krath94 · 8 years ago

"microaggressions"

You mean someone saying something completely normal with no ill intention and someone else, for whatever reason, getting offended?

pksohn · 8 years ago

It's not about getting offended or not. It's the small assumptions that, when repeated ad infinitum, build up social beliefs and structures that make it harder for certain people to succeed or fit in. The fact that folks on HN or Reddit constantly refer to their anonymous peers with male pronouns might make a female programmer a little less welcome. It may offend her, it may not, but it certainly doesn't help.