Just stand right behind a holographic door. They look orange with honey combs. When you stand close to one you can see through it. but from far away it's like staring at a wall. I use that to my advantage when sniping.
When you see the light at the end of the tunnel, the tunnel will collapse
More Bluntly... The light is a train
In English... Everything you work for will be taken from you
I am a pessimist...
It's better to be a pessimist, Because when the glass is half empty you get a refill!