You can’t see the past or the future. You might be able to remember the past but it no longer exists as a physical thing. The future might be predicted, but it doesn’t exist yet.

I tried to imagine how it works. Like walking through a door or a window. The present would be a thin flat plain of glass with your body perhaps caught in it, and the past and the future would be ghostly after images of a leg or the impression of an arm projecting into the future….

Clearly it isn’t really like that. Our limbs don’t dissolve into a misty future or fall into a darkening landscape behind us. But it’s interesting to think about. We are ‘present’ in our present. We need to realise how strange the universe is. We need to care for our environment. We cannot see the future but we can try and make it safe for our future selves and generations.