What exactly is time?
aah, that, my friend, cannot be answered.
yes it can.....
all time exists relative to mass and gravity and other things.
without mass time would not be able to occur
To us human beings, the physical reality appears* to be made of material objects and immaterial active phenomenon. We do perceive the reality of objects and active phenomenon through our body senses, and in return we can describe that perception of reality.
An object or an active phenomenon is real or exist on the double condition that we are able to first perceive it then describe it.
By contrast that, which doesn't exist in reality, the non-physical, can only exist in our minds! Evidently we cannot perceive through our body senses that which does not exist in reality, and as a consequence we are unable to describe that, which doesn't exist.
Mental concepts that lack physical collateral cannot be perceived physically. And our inability to describe that which doesn't exist, corroborates that non existence.
* The expression "appears to be made of" rather than "is made of" is used here because the words "made-of" and "exist" are misleading; they imply that things are "made of" matter that doesn't need time to "exist"! In the gravimotion world, which is an interpretation of Nature that departs from traditional thinking, matter's very inner-core that is the subatomic particle, doesn't "exist", but "occurs" dynamically instead!
Even though the word "exist" is belittled in gravimotion, the 2 words "exist" and "occur" are used indiscriminately in this page and elsewhere.
Here are things that we perceive, along with their description, and as such ...
which are physical or exist in reality.
Because we can touch them, material objects are physical, and exist in reality. In conjunction with that reality that does exist outside our minds, we make crystal clear mental images of material objects within our minds. And in return we can describe them.
Then in reality, unlike material objects though, there are phenomenon such as gravitation that occur and as such exist and are physical yet non-material.
Even though one cannot touch gravitation as one does material objects, and even though gravitation acts out of immaterial space, because gravitation makes objects fall, gravitation is physical.
Similarly even though one cannot grab them with one's hands, light rays are physical because they have a physical effect, light rays from the sun heat up our skin.
Both gravitation and light rays, even though non material, are physical and do exist or occur in reality because they act on matter; we clearly perceive their respective effects with our body; and in return we are able to concisely describe these effects as just done above.
Our perceptions then our descriptions of gravitation and light rays corroborate their physical existence.
