1. the act or the state of expecting: to wait in expectation.
2. the act or state of looking forward or anticipating.
3. an expectant mental attitude: a high pitch of expectation.
4. something expected; a thing looked forward to.
5. Often, expectations. a prospect of future good or profit: to have great expectations.
Additional study material for this subject can be found at the links below.
The Law of Least Effort
Principle Of Least Effort
A different perspective to consider.