Everything you understand as consciousness or presencing is temporalised, it flows according to the schemes of retention and protention etc. And temporalisation itself is temporalised, it is a more subtle resolving but flowing with the rest, with breath, with the beating of your heart, with the slow revolution of the light. Upstream or downstream are only different ways of precipitating a fleeting image in and out and back in time. You only look just ahead and are severed as as completely from what has passed no matter how large the scoop you have employed. For this to go on the subject must be outside of time and so cannot be grasped as any form of consciousness, the subject, or what you are, is neither in consciousness nor in time.