Do you think not? Your glass is only half full if it is in the process of being filled. When being depleted it is always considered half empty or halfway to empty. Those without scientific curiosity and/or the rarely experienced human spirit of discovery are always tending towards empty, therefore, always unfulfilled. Perception by itself has little to do with truth, even though it can coincide with truth and sometimes lead to the discovery of truth. However, in this era it is now in vogue to believe that perception equals the truth. This is perhaps the greatest misjudgment embraced by modern man. If a person’s perception is faulty, it can lead to failure or worse. If a nation’s collective perception is faulty, as expressed in its leaders, it can lead to the destruction of that nation.