Things which are computationally easy to create are possible to brute force. Bit Coin only works because it is computationally hard to create them. At some poin

Things which are computationally easy to create are possible to brute force. Bit Coin only works because it is computationally hard to create them. At some point (50 years from now) Bit coins will not be as impossible to compute as they are now, but the exponential increase in difficulty to compute new ones will limit the likelihood that the advances in technology will catch the computational requirement.