Quantum positioning system will soon step in when GPS fails. IN 2016 a British submarine will slip its moorings and set sail under the guidance of the quantum world. The navigation system it will be testing should record the vessel's position with 1000 times more accuracy than anything before. (1)

Try to trace your footprints back to where you were.
Go all the way back.
Where do you stand?

But...

Can you trace your foot prints back to where you were?
Can you go all the way back?

Is life something you live?
Or is anything you live life?

Are your footsteps... your footsteps?

See the snow.
Look at the sand.
Empty.

As if noone ever stepped on them.
And yet you are here...
Walking.