I was watching a movie last nightthousands of years into the future and they were using binoculars. My first thought was 5000 years from now nobody is going to be using curved lenses. Big, clumsy tech from 1814, it's 2019. We hajve a better mouse trap and the world needs it. And the poster before me, what relevant facts are you bringing to the table that we are unaware of? You are just here to create chaos. We don’t need your wonderful insightful advise. If we wanted to advise we would go to a professional and buy tbills. You are not needed. We are fine on our own.