I love this cartoon! It’s a great illustration of why Quentin’s Second Law can prove so challenging.
When I take my foot off the accelerator in my electric car, the ‘regenerative braking’ process charges up the battery. Similarly if I’m going downhill. This is reasonably well-known now.
Well, I was talking to a friend today about his planned purchase of some high-tech hearing aids. They sound splendid, though they should do for the price. It would be cheaper to put two MacBook Pros in your ears… though perhaps a bit less comfortable.
Anyway, I was asking him about their battery life, and, pondering this topic later, I was thinking that you ought to be able to do something similarly clever there: if they use power to amplify things which are too quiet, could they also recharge their batteries by deadening things that are too loud? If you were out for a long day and they started to run down, you could simply head for a loud rock concert, or perhaps seek out a high-crime area and stand near some police sirens. Even if the recharging didn’t work very well, you wouldn’t be able to hear anything afterwards anyway, so you wouldn’t care.
Brilliant, eh? I’m off to the patent office…
I once went to a talk by Ben Goldacre, in which he said he was going to get a T-shirt printed. This was because he seemed to be giving the same response to lots of questions recently, and it would be easier if people could just read the answer as they walked up to him. The text would say, “I think you’ll find it’s a bit more complicated than that.”
It was a throwaway comment, but I often think of it, most recently as the British mobile phone networks start rolling out 5G and (because they spent so much on licensing the spectrum) are being very energetic about telling us how wonderful it is.
Yes, 5G can be faster. Potentially much faster. That’s the main marketing push, of course: you can play games more interactively and watch higher-quality videos more quickly. Marketing people like simple numbers. Which is fine, but it’s just an incremental change to 4G, and many people, including me, find it hard to get very excited about that.
I’m far from being an expert on mobile networks, but I have some friends who are, and I’m slowly learning that there are lots of other aspects to consider. Here are a few lesser-known facts about 5G:
So, yes, 5G is generally a good thing, or will be in a couple of years. And it has key advantages other than just streaming Netflix in higher resolution.
But perhaps the best news, if your family and friends start asking you about it, is that Ben did actually go ahead and create those T-shirts.
A man’s reach should exceed his grasp
Or what’s a hedgetrimmer extension handle for?
Today, for the first time ever, I’ve been wearing contact lenses. As a new user, I have to say, they’re a jolly impressive technology!
These are multifocal ones, which I hope may save me from the routine of putting on my reading glasses, taking them off, dropping them, picking them up, losing them, finding them, cleaning them etc, which I currently do several times an hour. We’ll see how well they work overall, but you know what was the very first benefit I noticed in the optician’s office? I could read my Apple Watch!
Such a cruel mistress is Fate, that the very moment that I was able to purchase this miracle of technology and strap it to my wrist was the same moment my eyesight deteriorated to the point where only things further away than the end of my arm could be viewed unaided. Since then, yes, I’ve been able to read big digits and press pause buttons, but most of the more detailed displays on the watch have had me reaching for my glasses, which does somewhat tarnish the high-tech coolness of it all. Sigh. Old computer-graphics geeks don’t die, they just lose their resolution.
Another problem I’d like to solve is that of seeing both my SatNav and the road. I don’t need glasses for driving. I do need them to read the dashboard. When I put them on, I can’t see the road. Ça, c’est un problême.
So is needing a spare hand for specs when I’m taking photos. I can use my camera’s viewfinder, which has a diopter correction, or the rear screen, which doesn’t. I often want to switch between these to get the best shot, but by the time I’m ready, the eagle has flown.
In a way, it would be easier if I needed to wear glasses all the time, rather then half the time. But my distance vision isn’t at all bad, and I tried varifocal glasses and they didn’t agree with me. So I hope these prove to be a success. My total contact-lens-wearing experience currently runs to about 6 hours, so it’s too early to say.
But they have at least allowed me to write this post without difficulty, and, perhaps more importantly, they have solved that problem whose critical importance for humans was first identified by Arthur Dent on a spaceship in the late seventies, and encountered by me in central Cambridge in 2015: “How am I going to operate my digital watch now?”
© Copyright Quentin Stafford-Fraser