quantdev

6 ms·

1.
by quantdev 5y ago
It's very possible we never break the factoring problem. Since we have no properly unified theory of physics (e.g., one that models the observer in QFT), there are outstanding unknowns with quantum computing that may make it so that Sh
2.
by quantdev 6y ago
We have no good evidence or accepted model for how life started, besides "randomness" in a primordial soup, which is as good as "no idea". As such, it seems like a reasonable assumption to explore.
3.
by quantdev 6y ago
Only technology can save us from global warming and only private enterprises like Tesla and others can develop and - more importantly - cheaply scale that technology. There are billions of Chinese and Indians who will become the equivalent
4.
by quantdev 6y ago
Yes, you're right. I should have said, there's no better choice of symbols that will remove the huge set of prerequisites you need to first understand. There isn't as large of a tower of abstractions to understand most codeba
5.
by quantdev 6y ago
I'm both a programmer and a mathematician. Mathematics is written in English (or another human language) plus added symbols. The symbols are what we refer to as the notation. It's not comparable to programming language. Here the w
6.
by quantdev 7y ago
The primary transmission route in inhalation in close proximity to an infected person. Yes, it can persist on surfaces, but this hand-washing meme is mostly a result of (1) it costs nothing and may help, so we should try and (2) masks are s
7.
by quantdev 7y ago
What does hardware 1 and AP1 have to do with the latest hardware and autopilot?
8.
by quantdev 7y ago
The system is absolutely AI based today. There is no hardcoding like this. Hardware 3 in Tesla cars is an ASIC meant to run neural nets ( https://en.wikipedia.org/wiki/Tesla_Autopilot#Hardware_3 ). Why are you so confide
9.
by quantdev 7y ago
Future profitability is how equities are priced. Ford is expected to not be (very) profitable while Tesla is. Number of units sold is irrelevant.
10.
by quantdev 7y ago
Leetcode premium doesn't mean you'll see the problem. I suspect the probability of that is low, given these problems are constantly changing (there's a banned problem list at Google) and the interviewer pool is as well.
11.
by quantdev 7y ago
I 100% would be able to solve this problem without seeing it before. Yes, this is because I've practiced a lot of algorithm problems (and I enjoy them, frankly). Yes, this is hackable, but relying on resumes like every other industry (
12.
by quantdev 7y ago
Some analyst at Morgan Stanley made up that $100B number. It has ZERO meaning and no one should take it seriously. The market cap of a company is what investors are willing to pay for it. Given that Alphabet wholly owns Waymo, there is no w
13.
by quantdev 7y ago
So what? Products improve. This one will too. Imagine seeing an ad on Youtube and immediately being able to play the game on your chromebook. I don't know that's what is going to happen and it can't work today, but maybe in a
14.
by quantdev 7y ago
As someone concerned about climate change and very bullish on alternative energy, I still think this is a slippery slope. Google shouldn't choose who can use its services based on politics. GCP/Search/Maps should serve all le
15.
by quantdev 7y ago
VW has $44b in cash and $160b in debt.
16.
by quantdev 7y ago
Tesla has over $5Bn in cash and positive operating cash flow. You can argue about $TSLA the equity's valuation, but whether it survives long-term is no more questionable than whether VW survives.
17.
by quantdev 7y ago
There is absolutely no way beef spikes insulin as much as rice does. Beef has zero carbohydrates and while some protein does convert to glucose, it is a slow process and thus the insulin response will still be much less than if one consumed
18.
by quantdev 7y ago
Agreed. I don't want to see hosts challenging their guests' ideas. I appreciate Sean Carrol's physics podcasts for exactly the same reason: he doesn't always agree with his guest's interpretation of quantum mechanic
19.
by quantdev 7y ago
Why shouldn't we hear what nationalists have to say? Who gets to decide what is a conspiracy theory? They're not all as simply false as flat earth. Keto in the low-fat 90s would have been a conspiracy theory and a culture of censo
20.
by quantdev 7y ago
Hacker News has become tribal and politicized, much like many other parts of the internet.
21.
by quantdev 8y ago
>>If we believed that Amazon is actually creating 25,000 NEW jobs, as well as jobs that otherwise would not exist, it seems pretty reasonable to say that the state and city come out ahead net-net. From NYC's perspective, many of
22.
by quantdev 8y ago
I don't think the hedonic treadmill or that link has anything to do with your statement "the average person spends almost exactly as they make as income rises." The hedonic treadmill says that happiness is eventually independ
23.
by quantdev 9y ago
I'm neither a participant nor scientist in the study, so I don't see what point I'm missing. Actually even for both those groups, making predictions is fine, really, so long as the study is properly blinded. From anecdotes,
24.
by quantdev 9y ago
Incredible news. I cannot wait for this study. I expect positive results for both the supplements. What's your prediction?
25.
by quantdev 9y ago
Actually, it's not clear if boom and busts are "a thing" in free markets. We've had far worse booms and busts, and at a higher pace, ever since the Federal Reserve was created and has artificially modified the interest
26.
by quantdev 9y ago
Who cares who created it? The calculation is laid out and unless you have an error to present, you're criticism is invalid. It looks correct to me and is obviously more featured than the NYTs calculator which only allows you to pick r
27.
by quantdev 9y ago
Are both of you incorrectly taking into account payroll taxes or AMT or state and local? It seems accurate to me.
28.
by quantdev 9y ago
Surprised to see such a big tax decrease (~14%) even though my wife and I live in Manhattan and our state and local taxes are about ~10% effective. The loss of the state and local deductions is more than made up for by the drop in the margi
29.
by quantdev 9y ago
Your reasoning is an example of failing to understand the difference between a random variable and an exposure to a random variable. Experts are almost always right when the outcome is irrelevant. Economists can accurately predict next year
30.
by quantdev 9y ago
It's absolutely easy to do. The fact that it's probabilistic doesn't by default make it hard, and in fact, over long time frames, it's much easier to forecasts (expected) costs and profit for BTC miners than in most bus

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