Bitcoin relies on Proof-of-Work. The concept “proof-of-work” was first introduced as a type of consensus system in the network to slow down the rate of block-creation. Proof-of-work is a mathematical problem that needs to be solved.
We would be able to compare blockchain development platforms to the wind, and the way it drives and empowers a sailing vessel. Although the vessel can steer itself, the wind provides a momentum that has a direct impact on the movement of the vessel.