According to me, time is just calculated intervals of distance travelled by earth. I am talking about the clock-related concept of time here.
Even if we can time travel in the past with any time machine, the scenario we actually faced in the past won’t be the same because when the earth was present at that place, the cosmic energies were different and the matter shifted already at that ‘time’ into another form and it cannot be undone.
I think our mind is cosmically connected to the whole universe, that’s why we can remember past because our mental energy can reach that exact place where earth was at that ‘time’. No wonder we can imagine the unimaginable and most of it happens to be true. We think of the multiverse which may also be possible. You never know what else our mind is capable of reaching, but I am sure that it is connected to the universe deeply as more than 90% of the mind is unconscious. What do you think is contained in it?? Our past lives?? You mean the so-called thousands of years we travelled with earth or some other planet in the universe?
Also, some of us may envision future, probably because we can catch up on the present patterns of many things uncosciously and can travel to that future ‘place’ unknowingly. Although, all of this can be done only by the old souls because they have travelled a lot in the universe and now their unconscious mind has gotten trained to a good extent to recognize those patterns. I am not talking about human behaviour patterns here, as that is a whole different topic, but the patterns about interpreting the future without having any factual knowledge about certain events; Not even talking about manifestation here.
Ok.. coming back to the substance, I am talking about it without any scientific knowledge, but I really think that time is nothing, talking it from a different perspective than the scientific one. There is only distance in space, time is overall-a man-made concept.