Tokenisation is a simple method for accounting for the amount by which one person has contributed to the system compared to another. It is a mechanism that has been used for millennia and is the basis of all of our fiat currencies worldwide. Digital Tokens (as in crypto currencies etc) is just the next evolution of this. At the heart of any of these systems is an accounting system that counts who has what. The challenge is always to keep the system honest and immune from manipulation and fraudulent change. Modern cryptographic methods (encryption and digital signatures) provide modern methods of doing this in the same way that notarised signatures and paper contracts have done so in the past. Its just another, and faster way of solving an old problem, and does away with certain roles that held a monopoly on what could be done and so could charge whatever they could.