In the year of the Lord 2020 we experienced not only a warm but once again dry summer. When the world was then also afflicted by Corona, people looked for alternative sports and leisure activities. And so it came about that young Mathias made the acquaintance of the community of the early bird swimmers.
… was what Andreas Bourani already sang in 2011. In the past days and weeks this phrase has often come into my head. The connection may not be immediately apparent to everyone, but the corona pandemic somehow made me aware of it again.
In my last
post I wrote something about crypto currencies and blockchain, but only hinted
at what blockchains can be used for and what the fundamental innovations of
blockchain technology are. For me, it’s the fact that the double-spend problem
is finally solved – transparently and without having to trust a central authority.
does that mean in detail? The easiest way to explain double spending is as
follows: If you buy a book in the real analogue world , you pay for a book once
and get a book once . And only you own the book physically. If your
neighbours want to read it too because you raved on about how great the book
is… Well, then you have to “lend” it, i.e. give it away – then your
neighbour will have it. Thus there’s only one “instance” of the book,
unless you copy it yourself and then distribute it (but let’s forget that now
before we do overdo it 😊).
was an eventful year. On the last day of the year I saw the news from
OceanCleanup, a great project that first had to fight huge resistance and is
now experiencing a setback. But actually this article is about Bitcoin and
Blockchain. By the end of 2017, Bitcoin and many other crypto currencies had
reached heights that made many dream (and some are converting all their
belongings into cash (1) to invest in Bitcoin and benefit from the hype). You
could also say: greed had gripped people and in 2018 the situation returned to normal.
But what comes next?