Never wait for Plan A to fail before you put Plan B in place.
Certain operations can’t afford the luxury of a breakdown without an alternative.
Always keep your house in order because you may not have all the time when the guest notifies you of a visit.
If you must generate power in the middle of nowhere, you must carry a working generator along with you or have one waiting there!
The reason your car has a spare tyre is simply to afford you alternatives, carrying a bad one along is simply creating an opportunity to be stranded.
The point behind this piece is not too difficult to grasp;
Simply be ready at all times!