Problem wont be energy input it'll be heat dumping. You can't transfer heat in a vacuum effectively -- just go google how large the International Space Station's radiators are just to ensure its electrical systems are cooled adequately.
Unless someone figures out how to break the laws of thermodynamics there's never going to be a cost effective DC in space.
To keep everything under 100C (or 50C), your radiator surface area is in the same ballpark as your solar panel surface area. No laws of thermodynamics need to be broken. But you do need very low launch costs.
Edit: https://en.wikipedia.org/wiki/Planetary_equilibrium_temperat... A blackbody sphere near Earth's orbit balances out to almost exactly 0C. A sphere has about 4x as much radiating surface as capturing surface. A flat surface facing the sun that would have 2x, front and back.
ISS needs its radiators for the humans rather than for the electronics, which can run hotter than we can remain alive. However, main thing is compare them to the size of the ISS's solar panels: both are big, but similarly big.
All these complaints about Claude code are mostly resolved if you pay for your usage with direct API pay as you go. It’s not cheap but nearly all the complaints I see about Claude code are due to the fact the subscription plans seem unsustainable from a cost perspective.
This exactly. No other laptop comes close on price for the hardware you get. Yeah you may get more ram in a PC but promise you it won’t feel as fast when you’re using it day to day or have as good of a display or battery life.
In same price range you can get a PC that not only has more ram but also has better multicore performance, better disk speed and better port selection. Yes neo wins on build quality, trackpad, speaker, display and battery life but the PC would also allow you to install any linux distro.
Cursor has no AI services, they do not develop their own frontier models. I see no reason to understand why $10bn for Cursor's services is an advantage xAI versus say a $10bn deal with Anthropic, OpenAI or Google.
It's true that Cursor doesn't have their own frontier models, but they are training their own models. They just aren't at frontier level yet. The $60B/$10B deal looks like a bet that this is a capital/GPU constraint rather than a capability one.
They're going to force a S&P500 index listing on IPO day so we're all going to be forced to baghold this regardless of if we want to or not unless you've got $0 in any major retirement fund.
So far only Nasdaq has changed its rules and will allow fast entry in 15 trading days. S&P has not changed its rules, not yet at least. Total indexed capital of Nasdaq is 1.4T vs 16T in the S&P500. Stated reason for fast tracking is that the indices are supposed to be a broad representation of the market, and leaving a 2T company out would be a significant tracking error.
I do agree that the optics of this aren’t great, and it’s rather easy to be cynical about motives.
I did a bit of research on this some time ago and it's not as bad as I originally thought. Index funds would need to count only liquid float of the company. So if Space X total valuation is 2 trillion, but float is 5%, then they need to count it as 100 billion for the purposes of index weight. Still more than I want, but not catastrophic.
You gotta do what you think is best, but I hope for future you's sake you decide to not pull the money out. Or if you do you have other retirement plans.
I'm trying to help my parents now their at retirement age and am seeing first hand what not planning for your future looks like. They hit retirement with nothing but a small social security check every month. Not even enough to cover rent in most places.
I don't know how much you have in your 401k, but it will be worth literally hundreds of thousands more if you pull it out when you retire. You aren't just paying the penalties now, you're paying for potentially decades of compounding.
You could just buy deep out of money SP500 puts expiring in 1+ year. That way you would be "insured" against the bubble popping.
The thing is, every dollar you spend on insurance is a dollar (and its interest) you lose. Furthermore, we don't know when it will pop. 1 year? 5 years?
The more reasonable solution is probably gradually reduce exposure to US markets by selling SP500 shares and turning to Europe and emerging markets ETFs. No need to cash out 401k.
If you just look at the past 20 years, the US has had exceptional returns compared to the rest of the world.
The thing is, historically, high PE ratios like what we're seeing in the US do not correlate with short term returns that are as high. Expected future returns decrease as the PE ratios go up in a pretty linear fashion.
Why 20 years? Just because we know, post hoc, the usa outperformed other places in the last 20 years, in no way means the next 20 years will be the same.
If you want a different point to backtest from, try Japan in the 80s and early 90s
I'm not an expert but it looks to my like 80% of my allocation won't be tracking spacex, because it's mid cap or small cap etc, and the 20% that's in the vanguard growth index might? I assume whoever sets the rules for the fund could change the rules to say companies must be listed for X months if they want to avoid this, right?
And I can change my allocation.
edit: Actually wait, isn't it only nasdaq 100 that's tracking it early, after 15 days rather than 3 months of trading? So 0% of my 401k is exposed to buying it quickly after IPO already, I think.
401k rollovers into IRA aren't that hard these days and you could always use that IRA to have a more customized strategy, more specifically direct indexing of a major fund minus key ticker symbols you don't want exposure to. Of course, that all presumes that you won't regret excluding this long term.
The question is, is everyone integrating a special SpaceX correction in their algorithmic trading? Because if a dip in the index due to SpaceX causes old algorithms to think it’s a more structural issue (well, more than it is), and sell on that indicator, will that cause a cascade?
If your retirement fund is an IRA you can invest it in any stock you want. For a 401k you probably have some fund options that are not exposed to the S&P500, like emerging markets or fixed income
Maybe this already exists, but it would be great if one of the major index ETFs omitted all the firms with problematic board governance like there is at Tesla, SpaceX.
S&P500 had a rule from 2017 to 2023 that prevented companies with dual classes of shares (the sort that allow them to maintain founder control- like what GOOG and META did) that went public after the rule was instituted from ever being in the index. To be clear, META and GOOG were both in the index, but it was to prevent new companies from coming along and doing it. (I think it was related to SNAP going public?)
They removed it largely because investors wanted higher returns, and the tech companies that had such dual classes (1) were doing really well, and the S&P ended up caving on that rule.
1: Perennial hot button around here Palantir did this in a more extreme fashion than most. The three founders F class shares will always be at 49.9999% of the votes and the early investors B class shares have 10 votes each as compared to the publicly traded A class shares 1 votes.
Shipping hundreds of millions of new phones every year isn't pushing hard while earning billions? Near every single company in the world would die to have Apple's balance sheet.
Apple Silicon in the past 5 years has trounced every single market player. Apple has to make decisions on things like sensors based on the supplier being able to deliver hundreds of millions annually -- by the time we see the hardware it was baked and locked in over 12 months ago.
In the areas I specifically mentioned? No, they don't push that hard.
Apple introduced 48MP camera sensors many years after they became available. For the past 2 or 3 years, there have been devices with much better cameras, but again, they're not iPhones. Some phones have been charging at peak 40-100W for a while, so when you look at Apple's 30-40W, it's not that impressive, is it? In a year or so they may release a foldable phone, but Samsung is already on the 7th iteration of the Fold. And so on.
It doesn't make their SoCs less impressive (typing this on a M4 Mac!) or the shipping of so many devices a lesser feat, but Apple is very conservative with iPhones, and that's very apparent when you look at all phones out there.
The shipped nearly 250 million phones last year plus millions of other products. Having 30% recycled materials across a production line of that scale is massively impressive if you ask me.
Why is the number of phones of relevance? If anything, wouldn't a higher number of shipped phones just mean, that recycling becomes more worth it? Other than that, I don't see how that number plays a role. It is what is inside each of those phones, that matters, I think.
Unless someone figures out how to break the laws of thermodynamics there's never going to be a cost effective DC in space.