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Comment Re:Good points, bad points (Score 1) 287

I drove a BMW with a speed limit detector. If I am correct, it did not feed that back into the cruise control, but seeing the current speed limit on the side of your current speed in the heads up display, hovering above your hood, was sufficient to not speed by accident. The system worked quite flawlessly, even in medium snow. It is a mix from nav data and forward sign detection. The only mistake I notices was when merging back onto the Autobahn, that was under construction, it showed unlimited on the acceleration lane, until it saw the first sign (at the end of the lane).

Comment Re:Photosynthesis thumbs up! (Score 1) 65

The thing with a solar powered plane is that at theses speeds, I think plane it the wrong design. How about a solar powered airship. You don't need power to keep it flying (almost) and it has a way higher surface area to put solar panels on. Additionally Batteries are almost neglectable, since all you need to do is provide more buoyancy through the balloon.

Comment Re:Yes, and? (Score 1) 178

With Credit Cards, you have a few central banks skimming a huge amount of profit from the bulk of commercial activity, basically inflating costs for all of society. With cash, the government (at taxpayer expense) has to continually print more while exchanging/destroying old notes and simultaneously fighting off counterfeiters. Maybe bitcoin can reduce these overhead costs to society while simultaneously making it easy to conduct a long-distance economic transaction.

I basically agree with you, crypto currency is an interesting vehicle to transfer wealth. But BT is quite wasteful; if you take the amount of energy required and wasted to authenticate each transaction (mining), the drag on society is not fully removed. I would like a crypto currency that is less wasteful. But that is the Catch 22 of crypto currencies. Make the authentication to simple and you are open to abuse, make the authentication hard and you waste lots of resources.

Comment Re:Yes, and? (Score 2) 178

The fact that the coins are nearly untraceable is the desired effect

This shows you have NO idea how BT works. The coins are super traceable and that is a feature of BT. Each and every transaction is noted in the public ledger (block chain). You wallet is just a private key (with some meta data). The actual amount in "your possession" is determined by the aggregate of transaction towards your "wallet" (public key). Where pseudonymity comes in to play is associating identities (keys) with real persons, but that has proven time and again to only be relatively thing veil. (Like pseudonyms on the internet in the 90s...)

Comment Re:Obvious (Score 1) 178

Although I find your musing interesting... That is not the issue here. All the information for "finding" the missing Bitcoins is public; it is in the public ledger (block chain). You "wallet" is just a private key; granted you can hide that in Mincraft... But the "coins" are not "hidden". The problem with MtGox is that of all the transactions that MtGox did, which are the legitimate ones and the which the fraudulent ones.

Comment Re:Take your space (Score 2) 290

Funny you say that. i have noticed that this depends on the size of the city. For example, I currently live in a medium sized European city (Karlsruhe, Garmany). This is the largest city in the area and as a result many people "go to town"; which results in quite a chaos in down town on a Saturday. The average person is incapable of negotiating a crowded area. In contrast, cities like Paris, Berlin or Munich this was never an issue. The flow of people is almost always running quite smoothly... until a Tourist stumbles on the scene. You also don't see many people using their smartphone while walking; because you can't. If you use your smart phone you either get bumped into or run in front of a tram or bus.

Comment Re: Good grief... (Score 1) 681

Although I am not GP, I could affirm the same. I am 32, but I guess with 25 would have been able to do the same. Interestingly I have learned most of it by chance and on the side. The basic idea is every time you have a task, not to learn what it the bare minimum to complete the task, but learn about the background. This will lead you to make better informed decisions at the higher level.

For example if you want to use a SQL database learn about what a DBMS does; learn about storage formats. You don't necessarily need to know exactly how your specific DB does the task, but you will understand why certain classes of queries are slower than others. (In a pinch, you can learn the exact reason why something is really slow; but you will not need start with adam and eve.)

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