Answer:
Our world would be a place running with if's and don'ts.
Step-by-step explanation:
The reason for this is because for every answer we come up with, there has to be a reason behind it. If we just assumed something was correct when it wasn't, that doesn't get us anywhere. Any invention a human has made would be non-existent and we would be miscalculating everything. This goes to show, if we put our minds to something, the future is bright!