Henri Bergson
1859-1941. French philosopher. Central and influential publications on time and laughter.
His doctoral thesis Time and Free Will: An Essay on the Immediate Data of Consciousness introduces the concept of durée (duration). For Bergson duration is not linear. An individual may perceive time differently. If you are busy or absorbed in thought time may gain speed, but if you are bored time may slow down. It is your mind that does not work in a linear way, past and present intersect, the individual stands between now and then.
In Introduction to Metaphysics Bergson presents the three images of duration, one of them is the spool image The first image represents two spools, one is unrolling depicting the ongoing flow of ageing, the other spool is rolling up illustrating the ongoing growth of memory which corresponds to consciousness.
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