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Comment Re:Cool, opt-in tracking bracelet (Score 1) 427

RabidReindeer, while that was an excellent technical description of the difference between GPS location and cell tower location, but I'm not sure you noticed your comment didn't actually have anything to do with jareth's comment about the relevance of a smart watch entirely lacking GPS and cellular communications and your smart phone having both active GPS and passive cell tracking while being on a dedicated data network, thereby making the idea of calling them "tracking bracelets" one of the more irrelevant comments in Slashdot history. If you don't want to be tracked as ragoshen has stated, your smart watch would be irrelevant, while your smartphone has the key to your current location as well as your historical location. The fact that your smart watch requires a smartphone doesn't make a smart watch any more capable of tracking you on it's own, regardless of it's actual usefulness on it's own.

Comment Re:FOOL Cells is what they are (Score 1) 216

Electricity is a bit easier to transport than hydrogen, and we already have the infrastructure to do that in place, reliably. Generating electricity is SO much easier to do than hydrogen, and it's potentially a lot cleaner as well. And for the most part we have that figured out reliably as well. Taking your electricity around with you is a little harder, but there are coming innovations in materials and geometries for anodes and cathodes that in the next 5 years are going to make batteries staggeringly better not only in storage, but also in their ability to be recharged. In the end battery electric will win out over fuel-cell electric, not just because of it's early to market advantage, but also to it's cleanliness, infrastructure, and reliability. The Japanese automakers are as much in the pockets of their American competitors, and Elon nailed it when he went in for some massive industry disruption.

Comment hydrogen storage (Score 1) 216

There's no mention of how they managed to store the hydrogen safely. It's a small and spacious gas, so trying to contain it in a high enough pressure safely to give a car powered by it enough range has been the historical biggest challenge. I want to know what guarantee there is that the hydrogen tank won't spontaneously burst, or what happens after I leave the car parked for a few weeks.

Comment the difference (Score 1) 61

In one case you're in another person's head in another person's world. In the other case you're in another person's world, but still in your own head and in control of your own actions. I promise being in your head and making your own decisions is better.

Comment retcon (Score 1) 745

Unless such occurrences are all retroactively changed when the law is changed, which would include changing how we remember perceiving said prior law. A good programmer won't copy a function, they'll link to it, and when that function changes, no other code referencing that function will have an idea that it was ever different than as they currently perceive it. That's what they call retroactive continuity.

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