jcdavis

20 ms·

151.
Fun C Micro-optimizations: restrict(jcdav.is)
11 points by jcdavis 11y ago|2 comments
152.
by jcdavis 11y ago
I reported 2 admittedly minor web security bugs to them several months back that surprisingly I was apparently the first to report, but still haven't heard back about either.
153.
by jcdavis 11y ago
It makes sense - As soon as they claim they are a principal the lawsuits from their drivers about employement status become more legitimate.
154.
by jcdavis 11y ago
We can argue this one all day :). I would argue Lyft is merely providing the service of matching me with the driver (who is a 3rd party, specifically not an employee), for which it takes a fixed cut. The driver is the primary provider of
155.
by jcdavis 11y ago
Lyft doesn't take inventory risk, has a fixed fee structure and doesn't perform most of the actual service (the drivers do). If you want to geek out, there are actually some standards for reporting gross vs net, see EITF 99-19 ht
156.
by jcdavis 11y ago
Sure, but I'd argue even using gross in a situation where you aren't the primary provider is misleading. Financial processors such as Visa (or Square for that matter), pretty much only talk about net revenue (Square's S-1 use
157.
by jcdavis 11y ago
Indeed, but when the net is 20% of that it feels pretty misleading (at least to me). "Cut of money the drivers take" being 80%? The wording feels very off
158.
by jcdavis 11y ago
"At the Robin Hood Investors Conference in New York on Tuesday, Lyft said it expected to generate about $1 billion in annualized gross revenue next year, a figure that does not account for the cut of money the drivers take from each tr
159.
by jcdavis 11y ago
Wells Fargo has this via "guest users". I have a read-only user that mint uses
160.
More JVM Signal tricks – Thread control via mprotect(jcdav.is)
2 points by jcdavis 11y ago|0 comments
161.
by jcdavis 11y ago
For those interested, I highly recommend reading Berkshire Beyond Buffet ( http://www.amazon.com/Berkshire-Beyond-Buffett-Enduring-Valu... ), which talks a lot about all the individual businesses before & after being acqu
162.
SIGSEGV as control flow – How the JVM optimizes your null checks(jcdav.is)
6 points by jcdavis 11y ago|0 comments
163.
by jcdavis 11y ago
They have, in the form of $8 million in funding for the No on F campaign. Which is why this ad looks so pathetically tone deaf
164.
by jcdavis 11y ago
Yea, I guess the interesting question is why desktop CPUs have relatively so little (I suspect the answer is Intel trying to price differentiate their Xeon chips, but who knows)
165.
by jcdavis 11y ago
Isn't 8mb of L3 cache a huge amount for a phone with 2 gigs of ram? A $260 Intel i5 6600 only has 6mb
166.
by jcdavis 11y ago
I flew to IPC (aka Easter Island Airport) in 2013. It actually has a massive runway due to being a Space Shuttle diversion site, although the terminal itself is a glorified shack. Flying there (from Santiago) was a bit terrifying knowing ho
167.
by jcdavis 11y ago
The numbers are definitely misleading, which is unfortunate because it takes away from the message, which is decent I think. You need to save far more than $5k/year to retire early, not much of a way around that.
168.
by jcdavis 11y ago
Total return is ~4.3% nominal ~2% real annualized since Jan 2000, ~7.5% nominal ~5.4% real annualized since Jul 2005. Total return isn't a perfect measurement (particularly due to taxation of dividends), but its a much more useful numb
169.
by jcdavis 11y ago
P/B is an extremely simplistic measurement that must be used with caution. Many financial companies trade with P/Bs <1.
170.
by jcdavis 11y ago
Fixed rates mortgages are mostly a US thing, from what I can find Canada (like most of the world) has very limited access to them for long-duration mortgages. Just a small nit, for the most point I agree with your comment that this is a pre
171.
by jcdavis 11y ago
Worth remembering that that chart is from 2011. The S&P 500 is now over 2100, so over 50% above the end of that chart
172.
by jcdavis 11y ago
> Campfire was popular throughout my more technical social groups up until a couple of years ago but never came close to the intensity around Slack Slack is a substantially better experience than Campfire
173.
by jcdavis 12y ago
The article is bs and reeks of ass-covering (and lots of other folks agree). If S&P 500 was such a bad benchmark, why did he bet $320k on being able to beat it? The other points (interest rates etc) amount to "We couldn't pred
174.
by jcdavis 12y ago
The 0.17% is only for the "investor class" shares, which starts at 3k. Invest 10k and you get "admiral class" shares which charge only 0.05%. At $5m you can get "institutional "which only charges 0.04%, and at
175.
by jcdavis 12y ago
In theory, but look at the dataset ( https://github.com/AgoraOpus/Sell-in-May/blob/master/resourc... ) and the adjusted close is the same.
176.
by jcdavis 12y ago
Thank You! Its ridiculous how many of the timing/tactical strategies ignore these factors because of the complexity, even though they introduce massive drag vs buy & hold. With the amount of data available, we should be able to do
177.
by jcdavis 12y ago
Tragedy of the commons in action. Every VC-backed startup is incentivized to sell, but in the process continues to kill goodwill towards dev startups. I'd be super hesitant of relying on any other company for core tech with high switch
178.
by jcdavis 12y ago
Earthquake concerns are a red herring, the lack of height is entirely self-inflicted. We know how to build tall buildings safely, but choose not to
179.
by jcdavis 12y ago
Not only that, but fund lives are getting longer. This article says the median time life is now 14 years: http://www.institutionalinvestor.com/Article.aspx?ArticleID=...
180.
by jcdavis 12y ago
Because reality for the lower class is far more complicated than that. In theory, she should move elsewhere. In practice, its not nearly that easy - there's no certainty of a new job, no money to move, (well-placed) fear of losing what

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