In traiditonal finance, different kinds of assets have different rules applied to them, and they are all different. A bond has different rules from an equity which has different rules from a swap which has different rules from property and so on. One of the key advantages of a market based on tokens is that there is only one kind of digital asset and that they have a defined set of rules that can be coded into “smart” “contracts” (ie, persistent scripts capable of executing transactions using those assets).