zamfi

17 ms·

151.
by zamfi 3y ago
> a national project to build cheap concrete housing for all who need it Out of curiosity, have you looked into this? This was basically the NYCHA approach in the '30s-'50s. Then we got the '70s-80s, and for sure some go
152.
by zamfi 3y ago
yes
153.
by zamfi 3y ago
I’m sure this article makes great points too, but I had a hard time reading past this in the intro: “As Despommier notes, the world’s cities make up two per cent of the Earth’s surface but produce sixty per cent of the planet’s greenhouse e
154.
by zamfi 3y ago
Ugh, you are totally right. I originally had making $5m but then changed it and not the EV :facepalm:
155.
by zamfi 3y ago
Marijuana use has definitely increased since 2012, but it was pretty flat from 1992-2012 according to the same site I linked above.
156.
by zamfi 3y ago
Not to get all correlation/causation [0] on this, but teen substance abuse is down globally across the board. In the US, for example, alcohol use by 8th graders dropped from 45%+ in 1992 to below 25% in 2012 [1], the period described i
157.
by zamfi 3y ago
Richard Thaler, the behavioral economist, is pretty sure this is because the incentive structure goes bad. An executive who goes for a new project with a 50/50 chance of either (a) making $3m or (b) losing $1m -- note the expected valu
158.
by zamfi 3y ago
Is any company still like this? I was at Google in ‘06-07, and again ‘09-11, and already there were obvious differences. You just can’t scale “total internal transparency” when the company doubles in size every year. And at some point you n
159.
Four Magic Words(fortressofdoors.com)
14 points by zamfi 3y ago|1 comments
160.
by zamfi 3y ago
> here's a conservative and comprehensive list of results which have been solidly reproduced This sounds more like textbooks. Journals are usually intended to be venues for experts to talk to each other , not even "professiona
161.
by zamfi 3y ago
Hmm. I'm having a hard time being sad about bootstrapping renewable energy production capacity using nonrenewable energy. Sure, panels have a finite lifespan -- and then in 2040, if we succeed, all new panels will be built using rene
162.
by zamfi 3y ago
Hmm, interesting. Do you mind indulging in a few questions about how this worked out for you? 1) Is the issue here that the payoff is too slow? E.g., costs X to build a turbine but you only get back 10% of X each year, so it takes decades t
163.
by zamfi 3y ago
But wait, taxes are only on the difference between strike price and FMV, so if it’s underwater you could take it as a capital loss and net out ahead! /s
164.
by zamfi 3y ago
You probably know this, but commonly you can exercise options and keep the underlying shares past the original option expiry date. (Of course, you need the cash—and confidence in the business—to do this!)
165.
by zamfi 3y ago
An IRS audit isn’t because you underpaid the amount they think you owe — for that they usually send you a form saying, in their own special language, “hey I think you may not have included this XYZ income in your tax return, we think you ow
166.
by zamfi 3y ago
Yeah, just taxes alone doesn’t seem like it should take that long—but doing accounting for taxes can take a long time, especially if you’re self-employed and taking deductions, or have employees for your schedule-C business, etc. Perhaps
167.
by zamfi 3y ago
In inflation-adjusted terms the retail prices of things absolutely do drop. Sure, Tesla might choose to only sell a 600-mile range battery for $15k instead of the 300-mile range battery for $8k. But if there’s a market for a 300-mile vehi
168.
by zamfi 3y ago
This has very little to do with EVs in principle and a lot to do with everything else about a vehicle except its powertrain. EVs have low ground clearance for efficiency, just like most sedans. That's been "almost universal&quot
169.
by zamfi 3y ago
Ah, I see. Then I think you may be comparing apples and oranges -- in my experience ABRP is not doing the right thing with charge curves and cruise speed, which is dependent on a large number of unknowable factors at the planning stage anyw
170.
by zamfi 3y ago
Right, but isn’t 92 min / 702 min (11h42m) is a 13% increase, not 23%? (Also, ABRP by default adds 5 minutes “overhead” to charging stops — reasonable for non-superchargers were you have to futz with everything, but the supercharger ov
171.
by zamfi 3y ago
The smart money expects a Moore’s Law kind of curve here for quite some time going forward, given the economies of scale and powerful incentives. There will be more variability than with Moore’s Law because the raw materials are more expens
172.
by zamfi 3y ago
> The concern is that as adoption of EVs increase, the availability of places where one can charge on a journey outside of one's home range will not keep up with demand. I hope it becomes a non-issue, but I am hesitant to commit unt
173.
by zamfi 3y ago
You could also do this drive in a Tesla M3LR and charging adapters, but you’d be spending a lot of time at chargers either way…
174.
by zamfi 3y ago
Yeah the LEAF is not a road tripping vehicle. In my experience (M3LR) you spend about 15-20 minutes charging every 2-3 hours. ABRP tells you how much time you spend charging, and otherwise assumes map drive time, which may not correspond to
175.
by zamfi 3y ago
> Don't blame ChatGPT if it is misused by someone. I was very careful not to. I’m merely pointing out that availability matters. People’s actions sit in all sorts of levels of gray. Of course it’s up to the person, but that doesn’t
176.
by zamfi 3y ago
Arc furnace: peak of about 250 MW to melt the steel [1] Datacenter: seems to cap out at around 850 MW [2] Same ballpark I guess? Probably both are limited by inexpensive power availability + other connectivity factors (road/rail, fiber
177.
by zamfi 3y ago
Hmm. By this argument, getting ChatGPT to write your college-course essays for you is also "nothing new", given the abundant opportunities for plagiarism that existed before. But I think ease of use matters, in part because trivia
178.
by zamfi 3y ago
Hmm. I sense you are trying to make a point here, one I might even agree with, but I confess I have no idea what it is.
179.
by zamfi 3y ago
I’m not pretending the market is perfect at all. I’m saying what central planning we do have has been very anti-housing development. Your example perfectly supports that!
180.
by zamfi 3y ago
Central planning is kind of where we are now already — housing construction is severely restricted, housing costs are subsidized in some areas for some people but not others, etc. Competitive markets in general are pretty good at matching s

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