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freefal

543 karma · joined October 5, 2016

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freefal··on Show HN: 33 line React
The <marquee> tag is a throwback! Love it (in a toy project like this)
freefal··on Windows: Interface Guidelines (1995) [pdf]
Excel 2007 introduced multithreading, which is very useful on large spreadsheets.
freefal··on Google Kills Cloud Print
I'm interested in any responses as I had to do the exact same thing.
freefal··on Please don't use Slack for FOSS projects (2015)
That's not necessarily true. If you're a certified non-profit, you can get free Slack with unlimited message history for up to 250 users (https://slack.com/help/articles/204368833).
freefal··on If You Build It, the Dutch Will Pedal (2017)
As someone who bikes to work most days and thinks cycling infrastructure like this is great, what do the people profiled in this article do when it rains?
freefal··on Steve Wozniak: 'I've given up' on Level 5
I think this is a really neat idea. Imagine cars arranging themselves and coupling into a train and then seamlessly decoupling as they need to exit. That would save energy (air resistance) and be a more efficient way to move more cars down the same piece of road faster. It also removes the lost time of intermodal transportation.

No idea if it's practical.

freefal··on How Do You Like We Now
When you’ve got supermajority shares, you can basically put a gun to your own head.

Great summary of the situation from the article: “Neumann created a company that destroyed value at a blistering pace and nonetheless extracted a billion dollars for himself. He lit $10 billion of SoftBank’s money on fire and then went back to them and demanded a 10% commission. What an absolute legend.”

freefal··on Google Claims a Quantum Breakthrough That Could Change Computing
Reader mode in Firefox will remove the subscribe banner and show the article.
freefal··on Saudi Aramco Is the WeWork of Energy with Pulled IPO
Oddly, the HN title is the <title> tag, but not the headline actually shown on the website.
freefal··on The Great Public Market Reckoning
I think the difference is that when you open Spotify, you expect a complete or almost complete catalogue. People have existing artists that they really want to hear. That puts Spotify in a tough negotiating position as they have to license more or less everything.

When you open Netflix, you just want to watch something interesting within some category. That opens the door to Netflix creating its own content and puts them in a much better negotiating position vis-a-vis Hollywood. They don't need to license everything.

freefal··on U.N. postal union clinches deal to keep U.S. in
Nice to see this getting addressed.

There's a great Planet Money episode explaining the brokenness of the existing system (https://www.npr.org/sections/money/2018/08/01/634737852/epis...). NPR ends up substantiating the claim of an entrepreneur who says that it costs him more to send a package across the street than it costs someone in China to send a package to that same address.

freefal··on Peloton Confidentially Files Statement for Proposed IPO
Agree regarding preferring Zwift and a turbo but the sort of setup you describe seems to appeal to cyclists whereas the Peloton seems to appeal to the spin class crowd, many of who would never consider riding outside. The market is weirdly bifurcated between the two without a ton of overlap.
freefal··on The Maker of Gore-Tex Is Experimenting With an Artificial Cornea
Swipe navigation in mobile Safari is a problem. Lichess.org recently did a very nice redesign that made it more mobile friendly. But the user can’t drag and drop pieces from the leftmost file because it’s interpreted as navigation. Safari doesn’t allow the webpage to listen for this event so there’s no way to call ‘preventDefault’. Basically unfixable if you want to use the whole screen as far as I know.
freefal··on Driven – A bicycle drivechain concept without derailleurs and chains
First, from an engineering perspective, this product is really cool and maybe for some well-funded Tour de France team it could make sense to test this out. But the price point, the lack of compatibility with components of existing drivetrains and the lack of compelling reasons to make the change, are going to be headwinds to adoption.

On page 3 of their brochure (https://www.ceramicspeed.com/media/2979/driven_brochure.pdf), they're showing 0.5% - 1.0% efficiency gains over a traditional drivetrain that is cross-chained, meaning that if you use a traditional drivetrain correctly (i.e., shifting so as not to cross-chain) the gains are likely significantly smaller.

As ben7799 said, this company is primarily in the business of selling very expensive products that have minimal impact on performance.

freefal··on Tesla is raising up to $1.5B through convertible note and share sale
Lyft operates autonomous taxis (with backup drivers) in Las Vegas.
freefal··on Tesla Model Y
TIL a "saloon" isn't just an old time bar but also a synonym for "sedan"
freefal··on If Lyft can't keep its drivers as contractors, it may never be profitable
On the plus side, can't an independent truck driver or an Uber/Lyft driver claim tax deductions for all business-related expenses? From talking to a couple Uber drivers, my sense it that many are aggressive with the definition of "business-related" and deduct most of all their expenses. Appreciating the downsides (need to provide for one's own health insurance and retirement) I don't often see this increase net pay discussed.
freefal··on Plotting hearts with Python and C
And no unit tests or CI either? This is how rockets and hearts end up in pieces!

Good thing we can indicate our love with persnickety comments and have no need for such a program.

freefal··on California will not complete $77B high-speed rail project: governor
While it's likely a non-starter legislatively, I believe the answer would be to pass a carbon cap & trade or tax system that simply prices greenhouse gases. That way we get what we want (less greenhouse gases) without proscribing a specific solution, whether it's high-speed rail, electric vehicles, or people keeping their gas vehicle and carpooling to work. If we get the incentives right, people will figure out how to minimize the increased cost in the way that is least painful for them.
freefal··on Bill and Melinda Gates Foundation backtracks on one-year parental leaves
Yes, but the fact that he could creates a strong incentive for the company to identify such people and not hire them in the first place.
freefal··on Los Angeles Accuses Weather Channel App of Covertly Mining User Data
It's crazy the people download these ad-laden apps to simply get a weather forecast.

https://mobile.weather.gov is really nice lightweight website with no ads.

freefal··on Paint16b: A 16 byte paint program written in 12 lines
But why not explicitly set the register to 1 rather than assume its 0 and increment it by 1?
freefal··on GitLab Made $10.5M in Revenue with Every Employee Working from Home
I realize they are growing fast but isn't it a little early to declare success (as the title seems to) when you're generating $10.5 million with a cost structure that includes 350 employees?
freefal··on The problem Bitcoin solves
You agree to sell me some Bitcoin. I send you USD on PayPal and you send me Bitcoin. I later dispute the charge on PayPal. Your Bitcoin payment can't be similarly disputed. Now I have both my original USD and your Bitcoin. This happened all the time in the early days of Bitcoin.

The Bitcoin network worked as expected, but by most normal definitions of fraud, I've defrauded you.

freefal··on Learning from Terminals to Design the Future of User Interfaces
Just so no one accidentally deletes an email on Gmail, 'e' is archive and '#' is delete.
freefal··on Netflix and Alphabet will need to become ISPs, fast
I think your point is generally spot on, but I wanted to nitpick at this one:

> airlines needed it

No, they didn't. Regulation of fares, routes and market entry of new airlines kept prices artificially high until airlines were deregulated in the late 70s. Quoting from Wikipedia (https://en.wikipedia.org/wiki/Airline_Deregulation_Act#Effec...): "A 1996 Government Accountability Office report found that the average fare per passenger mile was about nine percent lower in 1994 than in 1979. Between 1976 and 1990 the paid fare had declined approximately thirty percent in inflation-adjusted terms. Passenger loads have risen, partly because airlines can now transfer larger aircraft to longer, busier routes and replace them with smaller ones on shorter, lower-traffic routes."

freefal··on Introducing Multi-Leg Options Strategies
You are exactly right. The electronic options exchanges facilitate market makers paying brokers for order flow.

The broker can send the order to the exchange with a field denoting their preferred market maker. In the absence of that field being populated, orders are allocated either by size (% of the best bid) or by time (who established the best bid first).

If that field is populated and the preferred market maker is on the best bid or best offer, he receives an outsized allocation of the order. The market maker keeps track of the number of contracts it has traded with that broker where the field was set and pays the broker whatever fee they've contractually agreed upon multiplied by the number of contracts.

The market maker can afford to do this because retail order flow is highly profitable to trade against (it's "dumb money"). In fact when a market maker runs a look back analysis on the profitability of his trading, he will see that his trading with other market makers and institutional orders results in almost no profit, whereas the retail flow is highly profitable.

This "payment for order flow" (PFOF) is not shared with the customer. So even if the customer pays no fee to trade, Robinhood can still earn a profit.

Source: Was an electronic options trader

freefal··on Java: "+=" applied to String operands can provoke side effects
I used that operator in a tight loop before the compiler was smart enough to automatically convert the code to use a StringBuilder. Boy was that slow...
freefal··on Memoirs of an Ass
That's the version from 1566. It's readable, but requires some extra effort to parse due to style, antiquated words and antiquated spelling.
freefal··on Slack's bait and switch
If you're a free/OSS project and have set up a non-profit, Slack will upgrade you to unlimited messages for free. I know because I'm in such a slack channel (lichess.org).
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