In theory if an attacker could control more than half of all the bitcoin nodes in existence then they could create a consensus that they owned all bitcoin, and embed that into the blockchain. But as the number of nodes grows this becomes less practical. how to buy cryptocurrency new york Since Bitcoin isn't controlled by a central entity, its monetary policy is much more sound than any government. Ark Invest CEO Cathie Wood describes Bitcoin as a "rules based monetary system", as Bitcoin's monetary policy is set by the parameters of the code. With governments printing out more money than ever before in light of the pandemic, investors are looking for alternative investments to hedge against inflation. Many are turning to Bitcoin to do so, facilitating adoption of cryptocurrency over the long-term.