Mutual exclusion

In computer science, mutual exclusion refers to the requirement of ensuring that no two concurrent processes or event are in their critical section at the same time; it is a basic requirement in concurrency control, to prevent race conditions. Here, a critical section refers to a period when the process accesses a shared resource, such as shared memory. Two propositions (or events) are mutually exclusive or disjoint if they cannot both be true (occur). A clear example is the set of outcomes of a single coin toss, which can result in either heads or tails, but not both.
In the coin-tossing example, both outcomes are, in theory, jointly exhaustive, which means that at least one of the outcomes must happen, so these two possibilities together exhaust all the possibilities.[1] However, not all mutually exclusive events are collectively exhaustive. For example, the outcomes 1 and 4 of a single roll of a six-sided die are mutually exclusive (both cannot happen at the same time) but not collectively exhaustive (there are other possible outcomes; 2,3,5,6). So in essence when you have two options, they are always jointly or collectively exhaustive.
Life presents us with choices and these choices are both mutually exclusive and collectively exhaustive. It is collectively exhaustive in the sense that we must take decision and make our choices, you can’t excuse yourself but the very choice we have made excludes the other possible choice as both cannot be true (outcome).
In essence you make your choice and the choice you have made makes you; this is the true situation we find ourselves daily. But I have a concern, my concern is that we see people who are very careless with opportunities that have to take decision and they go about it as if nothing is at stake. They make choices and still want to determine what the choice they have made brings to them; this is impossible. Each time you have an opportunity to make a choice which presents itself daily, do that with a sense of high responsibility because no one eats his cake and still have it.