The value of any currency is supported by the size of the market for that currency. If shops accept a currency, then the desire to use that currency to purchase goods creates the value for that currency.

The principle characteristic of a Ponzi scheme is that the value of whatever is being sold is hidden. For a publicly traded stock, bond, commodity, whatever, the price goes down when people sell it and goes up when people buy it. Everyone can watch that happen, and they know what their share of the pie is worth. This is why security exchanges exist, to track and publish those values.

With Ponzi schemes, early withdrawals are hidden, and the value of the security is artificially inflated. By the time a Ponzi scheme matures, the value of the security is far below the advertised value, and may even be negative.

With cryptocurrency, the value of what you have is publicly listed. There's no opportunity for that kind of fraud. Cryptocurrency CANNOT be a Ponzi scheme.

This isn't to say that you can't run a Ponzi scheme around cryptocurrency. If you invest in a fund that is supposed to be earning money through cryptocurrency arbitrage, you are probably caught in a Ponzi scheme. There is nothing about cryptocurrency that makes it immune to the fraud that people perform with any other form of currency. It just isn't as susceptible to arguments over ownership.

My Dad's TRS-80 Model III was the first I can recall using. I was about 3, and I like to press the clicky red reset button on it. I think he didn't enjoy that, as he was probably working on something at the time. A kid can be worse than a cat when it comes to computer interference.
The first I owned, as a gift, was a Color Computer II, with the game cartridges like Doubleback, and Megamunchers. Didn't do much computing on it. Then we got a Commodore 64 and Vic 20 parts. Never got the Vic 20 going, but we had fun with the Commodore 64. The school, where my Dad was a teacher had his Model III, and a Model IV, and a bunch of Apple ][, and ][e computers. Soon there was an 8088 as well.

I have the same feeling. With some services where I don't care if I lose access if I stop using my Facebook account, I'll have it sign in for me. Otherwise I try to sign up directly on the site I'm registering for to use.

And yet they can't seem to comprehend the internets and need their 5yr old grandchild to show them how to use an ipad.

I'd prefer having the support of local people. However, religious belief too often stands in the way of telescopic investigation of our universe. Perhaps there can be something done so they feel it is part of their culture after all.

This is so clever. Glad to see someone realized that the port can recognize when it's upside down, so provide correctly oriented, different wiring for that configuration.

Got the card; haven't used it yet. After 2 months, my estimated battery life is still over 10 years, which is years beyond the average I'm told.

Looked into, but not freaked out about. Cats kill hundreds of millions of birds each year. 200M die in Canada alone.
200,000,000
vs.
28,000?

It's not even close. Delaying a switch to solar is much more deadly for birds, as it's expected 1/8th of species will soon (within decades) become extinct due to climate change.

Crunching the numbers, it's foolish to delay solar power adoption for even 28K birds a year.

Climate change is expected to soon kill off 1/8th of all bird species.
http://www.cbc.ca/news/canada/...

200M birds die from cats each year in Canada ( which has the human population of California).
http://www.cbc.ca/news/politic...

Either stop climate change pollution, or kiss some birds goodbye (peck on the cheek).

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Time was, phrases like, "if their entire platform doesn't want to play nice with mainstream standards" were deployed by Microsoft dweebs against UNIX geeks. Did you not notice that iPhone apps are written in Objective C / Cocoa? Swift could just as easily be called, The New Objective C, or Objective C^3, or Objective Cocoa, and none of what you're griping about has changed at all, since the iTunes App Store was first deployed. You don't own a Mac, so you're already not in the iTunes App Store market. Why, again, do you care about this discussion, at all?