i don’t think so, they basically have a very tight bean of sound that goes straight, and then count the time it takes to return. i think this only counts the first bounce, as there would be exponentially more after the first, and they would also be super quiet. (see the thought emporium’s video on this, and btw, im very much just saying my thoughts with 0 research)
I live in a family of 6, and we were able to live car free for a year when we lived in germany. My dad used to live and work 300 kilometers away, and he would visit us every few weeks, coming by high speed train. My mother did all the buying groceries by bike. And we didnt live in any big city. It was a town of less than 10.000 people. It is possible for families to live car free. We did roadtrips by bike, visited nearby cities, went to beaches by train. We did have the car of a relative available, but we used it some 5 or 6 times in the whole year.
I dont care if you have a family, you can live car free, if in the right place. And we aren’t super rich or anything, we lived with our relatives, and my dad lived in a friend’s house, who gave him a very big discount.
And we also didn’t have any 3 bikes each, our bikes were mostly oldies borrowed from old family friends who didn’t need them.
And if you do the math, 100 dolars a month, is pretty cheap for a car, if you consider gas and wear, so it is cheaper to buy a pretty nice bike every 3 months than to own a car.
I, as someone in a third world country, absolutely hate US foreign policy. Fuck you, we almost had a democracy for a minute. We didn’t need your highways either.
But you can’t blame these actions in the people of the US, as nor the army nor the FBI, CIA, and the other three letters are democratic.
I disagree with the climate change thing. There will be inevitable damage, which we should prepare for, but if we don’t try and stop it, even if it is past the 1.5 or more degrees, it will just get worse and worse, until it exhausts our repairs and kills us for good. If we dont stop it even if late, it will spiral out of control.
*it is one of the pieces of the puzzle. It is not renewable and generates trash that lasts thousands of years. It is another tool, and dismissing it is dumb, but it is not a silver bullet, and also isn’t that desirable for the long run.
I think it’s funny, you can get free cancer treatment by the gov in fucking Brazil, but not the US… Such a balanced country amirite?