If you stumble over crypto-currencies, you will soon stumble over peer-to-peer networks and you will then stumble over a term called antifragility.
Yet, what exactly is antifragility? And why are decentralized systems rather antifragile than centralized ones?
The term Antifragile was introduced by Nassim Nicholas Taleb in his book: Antifragile: Things That Gain from Disorder. Actually, Antifragility is quite simple, it is the opposite of fragility.
As you can see in the picture, as soon as pressure is applied to a system, a fragile system breaks. A robust system is able to withstand outside pressure and more or less stays the system after outside pressure has been applied. An antifragile system yet is gaining from pressure and will not just recover, but even become stronger than it was before. To push this further, antifragile systems gain from pressure (or disorder) - if none is applied they might soon turn into fragile systems.
The best real-life example of an antifragile system is the muscular system of our body. If we do not use it, it becomes more and more fragile - which is not the worst, since muscles need energy and the body can save that energy if we do not use our muscles. Yet it becomes fragile.
If a person not used to start doing sports suddenly starts running, he or she will need a long time to to adapt to the new tasks. A trained cyclist will have less problems when switching to running.
That is by the way another feature of antifragile systems. They are adaptive and able to react to environmental changes very fast. Therefore yet they need a lot of pressure to stay adaptive.
When it comes to centralized systems, this looks differently. With one central database overwatched by one system admin, you have a very fragile system. Security measures like firewalls make it more robust, but ultimately organizations try to add more decentralization by having several database servers with redundant data and several admins sharing responsibilities.
Decentralized systems are still very different from that. They do not have a head - in form of several system administrators or whatsoever. Look at the Blockchain. Nobody has direct control over it. Also, if one node is down, it doesn't affect the system. Even when 95% of the nodes get taken down, it will still work. A higher participation and therefore a higher pressure to the system makes it even more decentralized and more antifragile.
The next post will be about The DAO - I will explain why was it a fragile system - and will invite you to discuss possibilities for an antifragile DAO
