Hi Davido,

I was writing a three minute article so could not go into every possible attack and Bitcoin’s counter-move to defend. The defence against such an attack is actually trivially easy. If governments or some other entity seized the miners and data centres we will hard fork the network to a different hashing algorithm, rendering all of their seized equipment completely worthless.

In fact during the last soft fork when adversarial miners threatened to take over the network a pull request was submitted changing the hashing algorithm and the miners immediately capitulated.

It is simply not possible to successfully attack Bitcoin. The cost of defence with cryptography is always trillions of times cheaper than the cost of attacking it.