lewis500

21 ms·

121.
by lewis500 9y ago
"it seems that every journey only covers 41% of the costs involved in making it." This statistic is dumb. There is a distinction between marginal and average cost. Uber's marginal costs are negligible, except for the new mark
122.
by lewis500 9y ago
Hey HN. Co author here. Crazy to see this up here again. Anyway, just letting y'all know I finished my phd and teaching for now so there will be a lot more visualizations like this coming out this summer. Will get Vicapow back in the g
123.
by lewis500 10y ago
I was suuuper excited about this. But this site is cringeworthy, even for a beta, given they spent $10 million on this effort. For one, the division into the constitutional categories is kind of awkward; most people would just like to see b
124.
by lewis500 10y ago
Not really. If the marginal convenience and cheaper price of ride sharing firms led more drunk people to use them then it would be ride sharing that did it. Also, since there have always been taxis, it would have been a big coincidence to o
125.
by lewis500 10y ago
What a classy way to set your tools down. Also the new startup sounds great. Reading this made me trust this guy and want to work with him if I ever had the chance. I'm sure he and the rest of the team will pull off something good one
126.
by lewis500 10y ago
Makes me glad I got my Ph.D.
127.
by lewis500 10y ago
To people who feel pricing roads is wrong because of equity, what about pricing cars, gasoline, transit, parking, etc? Virtually all prices are hard on the poor but there are rarely calls to do away with prices where they already exist. It
128.
by lewis500 10y ago
Is it a coincidence that none of the authors has a prestigious academic position?
129.
by lewis500 10y ago
I am glad the author cites Red Plenty. That is a really excellent book that I think a lot of HN readers would like. It really takes you into frame of mind since lost, with poignance and good characters. It is important to note we live in an
130.
by lewis500 10y ago
Correction: there is evidence that Hillary is a big fan of hot sauce. No word yet on whether and how often it is in her bag. http://time.com/4297996/hillary-clinton-hot-sauce/
131.
by lewis500 10y ago
lol. okay, today i learned. poor hillary.
132.
by lewis500 10y ago
This reporter is credulous, because the Guardian is just awful. "Barry Chang barely made it into the lobby when Apple’s security team surrounded and escorted him off the property. “They said ‘you cannot come in, you’re not invited’. Af
133.
Federal Reserve Simulator(lewis500.github.io)
4 points by lewis500 10y ago|0 comments
134.
by lewis500 11y ago
Just because our infrastructure is lousy doesn't mean "underinvestment" is the cause. However, you measure it, American infrastructure has become extremely expensive to build. Countries with nice infrastructure---like Japan a
135.
by lewis500 11y ago
I used to live in pittsburgh. I wish I still did but I have to live here in the Bay for work. Other than the work environment, unless you're a millionaire, this place sucks compared to pittsburgh: takes an hour to get anywhere, insane
136.
Federal Reserve Simulator/Explainer(lewis500.github.io)
3 points by lewis500 11y ago|0 comments
137.
Why the cap on Uber/Lyft is a terrible idea(medium.com)
3 points by lewis500 11y ago|0 comments
138.
Part 1: building a traffic simulator with d3+angular(youtube.com)
3 points by lewis500 11y ago|0 comments
139.
by lewis500 11y ago
"The inland cities, with more land available to allow expansion, experienced the most overbuilding, the most aggressive lenders, the highest levels of speculators looking to get rich quick by flipping houses, and so perhaps it’s not th
140.
by lewis500 11y ago
point taken
141.
by lewis500 11y ago
hey did yall get you're supposed to click and drag around the dots? it's cool to make a crazy v(t)
142.
Show HN: Differential Equations Explained(lewis500.github.io)
171 points by lewis500 11y ago|75 comments
143.
by lewis500 11y ago
this is one of the first things i ever programmed! cool to see it is seeing the light of day again.
144.
by lewis500 11y ago
hey yall maybe you will like this short paper on dynamic control for bus bunching from my group http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.153...
145.
by lewis500 11y ago
yeah tonite about 9pm
146.
by lewis500 11y ago
going to fix that
147.
Why do buses bunch?(setosa.io)
216 points by lewis500 11y ago|154 comments
148.
by lewis500 12y ago
good catch my friend
149.
by lewis500 12y ago
hey yeah good point. I'll add a reference to the labels, which were added last minute.
150.
by lewis500 12y ago
watch for one on eigenvalues and vectors soon

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