It depends on the shape of the round-a-bout (remember we drive on the left side). If 4 roads I treat it the same as a cross intersection. Taking the first road off it is a left turn (left blinker), next off road is the same as going straight through so no blinker, last off road (assuming you are not going back the way you came) is a right turn so right blinker. If you see these blinkers you know where the car is going. Most round-a-bouts are 4 roaders here. If multiple roads off the round-a-bout then it is usually larger so if you see a car going round with a left blinker going what does it tell you that is useful ? It tells you that maybe the driver just forgot to turn his blinker off, or it can mean he turned it on early and is planning on turning off at some stage. You just don't know. Maybe he is going around twice (it happens) so no blinker yet. Personally I wait until it is obvious where the car is going. So blinkers mean nothing and do not help. If blinkers were so important then why aren't they made bigger and more obvious and a standardised shape and position ?
My grandfather never had an accident. He used to drive and treat other road users as if they were lunatics. I try and do the same.

Two things. How does a Tesla handle the driver dying when in self drive mode ? And secondly if you follow motoring articles they reckon there is little point in flicking your auto box into neutral when stopped at the lights and in fact it may even be detrimental to the box to do so. However I always do this because I hate to think what will happen when you stop at the lights and then have a medical event happen so your car then promptly wanders out into the middle of the intersection since it is still in gear. You might want to think about this if you are over 60.

I used to think that everything was cheaper in the US but not ice-cream after reading this. A 1/2 gallon at USD 8.99=NZD 14.65 and from Costco 2 (slightly less than 2l cartons) for USD14.99=NZD24.43 (or NZD12.21 per carton) are both so much more than our ice-cream. Our favorite is Deep South and 2l costs NZD8.23 or USD5.05.
Good to see at least one thing is cheaper here.

Watch out for round-a-bouts. In am effect to make them more usable here you are meant to indicate going into a round-a-bout and indicate when leaving. Yet one more distraction to a driver. The problem is that on the surface it seems a useful and courteous thing to do but in actuality it raises or causes jut as much confusion as before. By my estimation it is useful on about 10% of round-a-bouts with the other 90% it is just a nuisance. And imagine how this requirement would screw up a texter.

You can see the Chinese (or whoever) manufacturers working this out. "Let's see now 6" of drawstring worth 4c times 100,000 = yikes that's $4000. Let's do it anyway. I wonder if we can apply this elsewhere ?"

That will be the result of capitalism and greed. I bet they had some of the old packaging left and wanted to use them up first.

There is a tendency, once you have a key ring, to put keys on it. So you end up with a dozen keys on it. Under normal circumstances you tend NOT to use all these keys almost all the time. So you have a heap of weight, trouble in quickly finding the right key, a heap of keys easily grabbed by someone, lose 1 key lose the lot (all very well having a tag on them but if they are down a drain or manhole the tag is useless as you already know where they are), difficulty in lending another person a single key, but most importantly of all you have a bundle of keys that DO wear a hole in your trouser pockets. The car key around my neck only has one other key on it (house key). A stretchy loop doesn't work well.
And another thing that few realize is the keys are almost always on a circle type split ring that doesn't allow the keys to sit very tidily. You can buy triangle shaped split rings that allow the keys (2 in my case) to sit next to each other and take up little space. When we go out we take 2 sets of loops so that my wife doesn't have to wait for me if we happened to go different directions. We have been doing this for 10 years now and would never go back. And never misplaced our keys.

My key doesn't have to be plugged in and as long as it is within a couple of feet (around my neck) the engine starts just fine. And if I get out of the car and go shopping it is always around my neck where a. it is always in a known place and b. nobody can see it and it is hard to grab. You have no idea how convenient it can be.
Not so good if the key needs to be plugged in although it can still work okay as long as you remember that while it is plugged in AND you happen to be wearing trousers with decorative buttons that the loop can get caught on a button and pull the key to bits. This has just happened to my wife in her car although the first time in about 10 years.

My car keys live in either of two places. One is on a hook inside the house and the other is on a cord around my neck. Never ever anywhere else so I never spend time looking for my keys.

This is so true. Our society is so busy commenting on the road death rate and introducing new laws, mostly lowering speed limits because that is easier and is passive enforcement, than worrying about other causes of accidents. We have High Crash Area signs going up all over the place and usually at corners with Stop signs on them. I maintain that if they actually spent some time at Stop signs, ticket everybody not stopping with instant fines (95% don't stop these days) for a month at a time there would be such a stink in the media that the message would get through. After a few months of this I think we would see an improvement in safety.

How about not leaving them lying around just anywhere ?
Always put your stuff away in the same place then the problem goes away.
Although it can be a bit of a bugger when someone else shifts it. One of the things my wife and I argue about.
Start doing this with your reading glasses then expand the list of items that have their own places.
The good thing about this is when it becomes second nature so as dementia starts locations will have become ingrained so you won't lose so much stuff.

Problem with teenagers today is they know it all. When you watch a period drama you note that parents in them used to leave their money to their kids only when they reached 25 or 30. They knew something we seem to have forgotten.

I might claim that this doesn't actually happen at all. The most glaring errors are where it is so obvious that the writer HAS NOT re-read his/her story. I will nit pick and have been doing so for the last 20 years. The problems are slowly getting worse !

It was in the right place. Chit chat is about anything other than photography and Donald Trump. Sticking it into the Attic is a marginal call to my mind.

A lot of what I said was very much tongue-in-cheek. However from what you say the article posted by the OP sounded more like wishful thinking rather than a description of a valid process.
It is true about conservation of energy. EVs need a different source of energy (to convert to electricity) to be able to recharge the EVs batteries. To a degree, for example, electricity produced by hydroelectric generation would appear to be "free" energy to charge an EVs batteries BUT the atmospheric processes required to produce the water are not "free". Even using nuclear reactors require heat to be got rid of somehow mostly by heating up our climate. We are stuffed and are just passing the results of our looking for "free" energy onto our children.