The blockchain is designed to solve those problems that can not be solved (or which are poorly solved) centrally. Smart contracts, transparent economy, medicine, etc. For what purpose the commodity market need the blockchain? Equally well, you can carry out ico for vans with ice cream and hot-dogs stand.
1. We work in the medicine sector and want to develop new strings against cancer! So we want to help people out there and without the blockchain we would not been able to do this so you still think it is not usefull?
2. We provide investment options for people all around the world, so that they can own their own cannabis plant over us.
It is like an online game but with real profits you get from your plant.
3. We provide you with a social network for cannabis which allows you to trade things globally.