Optimism?

I based this poem on the idea that everyone assumes the glass is both half full and half empty- when really it is always full. At least on earth, it fills with air. so in truth pessimism is looking at something full- but since they cannot see it they simply can't believe it. Optimists see a glass half full because they associate the air with the atmosphere- hence it is not in the glass. For them, the air is the problems they ignore. It's there, but its someone elses problem.