How to destroy bitcoin is hash more than 50% of total hash network (51% attack).
If a person has hash power, then he / she can:
- make double / profit 2x with the same BTC, nice it only has 1 BTC but can transaction for example 5x masing2 1 BTC, can generate mass mass.
- Very likely he can increase difficulty quickly, others become lazy bitcoin miners.
Because it has to fight bitcoin network, it takes very very much and very very other hardware.
who can do this is just a government. Not an ordinary person.
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