From the perspective of a photon, there is no such thing as time.
It starts to be and it might exist for hundreds of trillions of years.
The photon is never affected by time since the moment it’s emitted, till when it’s absorbed again.
SWIVEL is a light modulator and connects light and time.
It works as an hourglass: trough a simple gesture of your hand you can experience light fading in and out, as the sand slowly falls.