Interestingly , it is difficult to differentiate gambling and trading because both acts are profit oriented and both contains risk taking.

To me both are acts of gambling whether buying and selling or staking. What actually separate the two is the risk level. In trading the risk level is minimal compare to predictions, in some digital trading platforms market predictions are still made to determine the upward or the downward movement of the market pendulum which indicates loss or gain, especially in the stoke market.

To properly differentiate trading from gambling, you have to make it clear the context of traditional trading methods  which has to do with physically buying and selling of products from the market or producers to the final consumers, in that way, the trader is always aware of his gain which defines the low level of risk.

Digital trading is different from that angle because, digital trading in some Phora is called gambling because it has alot to do with prediction of the market.

The concept of prediction can be used in both trading and gambling but, the difference is the context of usage and the level of the risk involved.