jaycroft · HackerTrans

I think you missed a factor of 1000 somewhere in there: Each satellite weighs about 1 ton, there are about 10,000 of them. That is 10,000 tons in orbit for the constellation, not 10. Assuming a 5 year decay, that's 10000/5/365 ~= 5 tons / day. Still about 10% of the natural incoming material, but considerably more than your "six hours worth per year".

jaycroft

2 yıl öncediscuss

There are two separate incidents here in the same article. Yesterday a tire was filmed falling off a 777 that was 20 years old. The 737 Max that rolled off the tarmac happened today.

jaycroft

3 yıl öncediscuss

283 meters, not 2.83km. Still big though. The helium is stored underground in a salt dome (that was once full of natural gas). See here for more: https://en.wikipedia.org/wiki/National_Helium_Reserve

jaycroft

3 yıl öncediscuss

A 17dB reduction in power is not 17 times less! It is a reduction by a factor of 10^(17/10) or about 50 times.

jaycroft

3 yıl öncediscuss

"In this case; how do they recombine..." that is exactly what the article is about. E-fuels are atmospheric carbon dioxide that is electrolyzed using renewable sources and combined with additional hydrogen in order to produce octane. So, my original parent is saying the process we should focus on is sequestration (Atmospheric carbon dioxide -> electrolyze to carbon and oxygen [this is the energy intensive step] -> bury the carbon and leave the oxygen -> harvest natural hydrocarbons / oil -> distill into various weights -> burn the octane). I propose achieving similar atmospheric carbon balance with similar energy inputs with the cycle (Atmospheric carbon dioxide -> electrolyze to carbon and oxygen [same energy per carbon] -> hydogenate the carbon to octane for portability and compatibility reasons -> burn the octane). The only point in doing all of this of course is the huge installed user base for engines that burn octane, a portable and stable fuel.

jaycroft

3 yıl öncediscuss

"Carbon is extracted from the air in the form of CO2 and combined with the hydrogen in a process called synthesis."

It seems like at least re-burning the carbon that's already in the air is better than burning new dug up carbon? This is at least not net atmospheric carbon positive. You can do sequestration too...

jaycroft

3 yıl öncediscuss

I think the parent is saying that the new CRO is bad not because they caused the dumpster fire - the new CRO is bad because after interviewing in January, they saw the dumpster fire and either thought it didn't matter, or that they could fix it. Not a case of "incompetent because they couldn't fix the problem", instead a case of "must be incompetent because they saw the books but took the job anyway".

jaycroft

3 yıl öncediscuss

Because now the bank has to pay interest to depositors of $150M instead of $100M, which means that they'll pay a lower, less competitive rate. So, in order to keep customers, banks are incentivized to lend out any and all spare cash for whatever yield that they can get, in order to give attractive rates to depositors. Losing customers though shouldn't really be a problem for the bank, after all, those customers did deposit "too much" money - once enough have left to seek higher yields elsewhere, there will be less cash on the sidelines, and so higher yields for the remaining customers. I suppose if your whole philosophy is "growth at any cost", and you're measuring growth not just by AUM but also by number of customers, you get excess risk taking and yield chasing.

jaycroft

4 yıl öncediscuss

Oh definitely - I can't say that I've had stellar experiences with Yelp in the past for restaurants, barbers, etc, from the consumer side, and I hear it is much worse as a business. I was just very surprised that in this niche Google performed so poorly and Yelp so well. I wouldn't go on to generalize from this experience though.

jaycroft

4 yıl öncediscuss

That's very possible - reviews by obscurity or something. Although I really feel like 10 years ago the roles of Google and Yelp were very much reversed here. Changing times changing strategies I suppose.

jaycroft

4 yıl öncediscuss

Replying to myself to add: for any other household service I probably wouldn't have even noticed. But, being in a vulnerable position, having sketchy locksmith services really freaked me out. You want my address and credit card info and also know that I have a disabled vehicle potentially outside of my garage? No thanks, not taking any extra chances here.

jaycroft

4 yıl öncediscuss

Oh wow, see my other comment in another thread. I had a ridiculously bad experience trying to get a key fob made last week - all the numbers would lead me around in circles, then I'd get "spam caller" numbers calling me telling me they were on their way. Switching to Yelp reviews seemed to solve the problem for locksmiths in particular, and I really can't figure out why...

jaycroft

4 yıl öncediscuss

So this is why when I called a locksmith last week, they took down my info and then 30 minutes later got a call from no less than 5 other locksmiths who were "on their way to my house". Nobody's phone number matched, nobody wanted to tell me who they worked for. Totally sketched out with Google Maps' suggestions, I switched to yelp. The first service I called on yelp was reasonably priced, was actually the person coming to my house, and totally hassle free. How is Yelp dealing with this when Google can't seem to?

jaycroft

4 yıl öncediscuss

The parent says that the technique often works on chatGPT, but says nothing about the effectiveness when applied to HN commenters :)

jaycroft

4 yıl öncediscuss

Furthermore we know that the wallet spent coins in 2017, three years after Hal's death. Someone other than Hal had (has?) access to the private key for that address.

jaycroft

4 yıl öncediscuss

No, that particular message could be created by anyone (including people who are not Paul le Roux), who has the key to the 1Q2 address, at any time, past or present.

All we have to go on right now is that someone knows the private key that corresponds to the 1Q2 address and used it sometime before the last hour to generate a hash of a message that says that Paul le Roux sent bitcoin to Hal Finney.

jaycroft

4 yıl öncediscuss

Even if Coinbase created ethereum and gas went directly to their wallet, would that be any different than Chase collecting a fee when I send a wire using their mobile app? Does Apple collect 30% of bank fees that are the results of actions taken within the various bank's apps? Does Apple charge Venmo a portion of the bank fees that are a part of the stransaction when users transmit money between each other?

jaycroft

4 yıl öncediscuss

Current SSL cert is valid through 23:59 on Monday, December 12. If there's a big binary even to bet on causing quick failure, this would seem to be it - just inside the testing window. Now... if twitter can't report the outage because twitter is out, does Yes or No pay out?

jaycroft

4 yıl öncediscuss

But it doesn't have to happen at the exact same time? Limit orders exist, no?

jaycroft

4 yıl öncediscuss

A little more nuanced take: the transfer agent maintains a list of shareholders at the company's behest, the DTCC is one step further down the chain, operating as a clearinghouse between brokers and banks. The list of shareholders is managed by the company or it's bookkeeper, the "transfer agent". Insiders and people who own paper certificates are on the list kept by the transfer agent, directly owning their shares on the company's books, alongside Cede & Co (a partner of the DTCC), who owns the bulk of all publicly traded shares. Cede & Co, and it's partner, the DTCC, then maintain a list of which shares beneficially belong to each of the DTCC members (brokerages, banks). The brokerages and banks in turn maintain lists of which clients beneficially own the brokerage's shares.

For one commonly used transfer agent's take, see: https://www.computershare.com/us/becoming-a-registered-share...

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