The flip side s that you don't have to use Chrome+Google for everything. I buy ebooks and watch youtube on it, plus my phone (so I buy android apps via the same google account). And Gmail is my fallback email account so that doesn't see much traffic.
I use 3-4 browsers and because WFH + VM's for coding some incidental sandboxing.
Isn't Linus Tech Tips an ad, though? The only times I've looked at it all I've seen is sponsored content with breaks to talk about sponsors and maybe buy some merch. Oh, and exhortations to use their affiliate links. And that's using Premium, I expect that without it the sponsored content would be broken up by youtube's ads.
Maybe my expectations are biased by subscribing to Nebula? And for those who do, Medlife Crisis just posted a fun video on the placebo effect featuring great (fake) sponsor callouts.
People can have absolute/exception memory for other things too. I dated a woman who could look at a bit of cloth and say "that's the same colour as..." and be right every time. Even when she hadn't seen the other item of clothing for months. It made shopping with her somewhat less painful because she wasn't constantly swapping things just to look at the colours.
Much better than perfect pitch, otherwise known as the ability to know that something is out of tune, by how much, and struggle to ignore that. A violinist friend managed to train herself to shift pitch to match the rest of the orchestra but I suspect part of the reason she turned to the dark side (jazz) was the latter's ability to adapt to her sense of correct pitch.
>the "real" perfect pitch people are always anchored, no matter how much noise anyone throws at them. Which is also a source of discomfort and difficulty
Not least because the argument about "what note is this" and "what note do you think you're singing" starts basically day one of singing lessons. Trying to learn any practical music when you can hear the difference between close frequencies mean you're effectively learning colours from a group who insist that blue and green are the same colour.
One of my party tricks used to be saying the song and artist from the first 5 seconds of a track. These days with samplers and synthesisers that's almost impossible. I still get tripped when I hear some samples, like "that's the bass guitar from {song x} WTF" in the middle of some otherwise pleasant song.
If you have a fast design/architecture, you may never need to optimise the code at all. But the flip side is that with a bad design or bad architecture optimising the implementation won't save you. With a sufficiently bad architecture starting again is the only reasonable choice.
I've seen code that does "fast" searches of a tree in a dumb way come out O(n^10) or worse (at some point you just stop counting), and the solution was not to search most of the tree at all. Find the relevant node and follow links from that.
Meanwhile in my day job performance really doesn't matter. We need a cloud system for the distributed high bandwidth side, but the smallest instances we can buy with the necessary bandwidth have so much CPU and RAM that even quite bad memory leaks take days to bring an instance down. Admittedly this is C++ with a sensible design (if I do say so myself) so ... good design and architecture means you don't have to optimise.
> If you have a fast design/architecture, you may never need to optimise the code at all. But the flip side is that with a bad design or bad architecture optimising the implementation won't save you. With a sufficiently bad architecture starting again is the only reasonable choice.
Yep, completely agree. I worked at a company with a poorly architected high-throughput system that was written in Perl. It got to a point where no more optimisations could make it scale, so it was rewritten. Of course the rewrite in a "faster language" was touted as the reason for its success but the truth was the new architecture didn't pound the database anywhere near as much.
My expectation is that one combustion car owners have to pay more of the cost of that fuel choice they'll change over. Lots of people already drive 20 minutes to save $10 on a tank full, or queue at the gas station ditto.
What we're really waiting for is second hand EVs in real numbers, or the political decision that small, electric cars are the only ones allowed on most streets. That would dramatically cut the death rates from both pollution and vehicular homicide.
What I’m waiting for is the 3 row SUV that I already have to be available in an EV. I don’t want dorky “futuristic” styles and model names distinguishing it as an EV just basically what I have already. Then I could use the EV for my day to day and the ICE for emergencies or road-trips.
Tesla tried it. There was no point Tesla building more swap stations because so few people paid the premium to get a swappable battery. It turns out that people who won't buy an electric car unless they can swap the battery will find some other reason not to buy an electric car if that reason is removed.
There's a reason that horses were the fancy sports car/military tool of the animal transport world. They eat a lot, break easily, and don't last long.
People used oxen, donkeys, llama etc way more than horses. And the Chinese invented wheelbarrows and used them extensively rather than using draft animals. They often use bicycles much the same way as wheelbarrows now, and rich people often find that amusing (possibly because a KMart bike is a toy, a Chinese bike is a workhorse).
Nope, with single speed/hub gears chain wear is still a problem, it's just that they're less sensitive to it and there's fewer parts to replace. When the chain gets longer it gets loose, but it has to be very loose indeed to fall off or skip on a single speed. With a derailleur setup there's a tension arm with a weak spring so when the chain wants to skip that tension arm lets it. Derailleur setups commonly have some cogs with fewer teeth than single speeds so the problem is more obvious. Also, often derailleur cogs are aluminium while single speed ones are steel (not always!).
Typically a safety bike will get through 3-5 chains before needing to replace the rear cog, and many more before replacing the chainring(s). But Pinion gearboxes in the bottom bracket often run small chainrings that are similar in size to the rear cog, and I suspect they need to replace both rather than just the rear one.
I ride a bicycle with a hub gear as my main form of transport. About two years ago, I noticed the sprocket (rear cog) was getting very worn, so I removed it so I could reverse it and let it wear on the other side of the teeth (standard procedure for this sprocket to extend the wear life). But I accidentally put it back the same way as before and didn't notice until recently when I changed the hub oil. I had no problems with the chain skipping, despite the heavy sprocket wear (although it's now worn to the point that I no longer feel comfortable letting it wear on the other side of the teeth, so I'll have to buy a new sprocket). But you are correct that the chain wears more than the sprocket; I've already replaced the chain a few times.
> I vaguely recall that people did state that rowing is what you should use to get the most energy out of a human body
The limit for athletes is normally cardiovascular, commonly oxygen - VO2max the the measurement there. For less fit people it can be the cardio side, their heart just isn't up to it so their muscles fail and they lie on the ground twitching. Oxygen-deprived people pant and gasp.
So recruiting more muscle groups really doesn't help. What does is increasing oxygen intake, and this is where recumbent bikes come in. The laid back position opens the thorax and increases effective lung capacity. As well as reducing air resistance, except that that's a very subtle thing that mostly depends on the rules governing the sport in question (fairing on bike and kayak, for example, are variously restricted or banned in most relevant sports).
You can also reverse that and exercise at high altitude... less oxygen for everyone!
> So recruiting more muscle groups really doesn't help. What does is increasing oxygen intake, and this is where recumbent bikes come in. The laid back position opens the thorax and increases effective lung capacity. As well as reducing air resistance, except that that's a very subtle thing that mostly depends on the rules governing the sport in question (fairing on bike and kayak, for example, are variously restricted or banned in most relevant sports).
Recumbent riders generally have much lower peak power and ftp but higher sustained so VO2 differences wouldn't explain it. The main attribution I've seen is aero and marginally less muscle power used for motions that aren't related to pedalling.
My limited experience is that it's easier to recruit more muscles on an upright, so your peak power can be higher. In my 30's I would hit double for a 30s trial on an upright vs a recumbent (last time I had a decent power meter was in my 30's). But over 5 minutes the recumbent was better even if both were fixed to stands. So I don't think it's the balance issue.
For an hour or more the recumbent wins just for comfort, and unfaired records it wins on air resistance (that's why the UCI banned them, it let povo scum beat gentlemen athletes). But then the UCI doesn't have faired records... it's only the IHPVA et al that make that distinction.
Interestingly the PBP etc records (we don't have records, this isn't a race!) are all uprights AFAIK. But that's xenophobia rather than technical skill from what I know. And the Round Australia record is an upright, largely because no-one on a recumbent has been inclined to attempt it. RAAM is held by a bent (https://en.wikipedia.org/wiki/Race_Across_America#Records).
Recumbents are notoriously difficult to ride as the grades get steeper. Upright cyclists have the advantage using different body positions (i.e. standing), but 'bent cyclists can't do that. On the steepest grades, it can be a challenge to even keep a 'bent's front wheel on the ground.
I use 3-4 browsers and because WFH + VM's for coding some incidental sandboxing.