The macroscopic flow of time we experience is the result of of the entropy created by the interactions of subatomic particles as they seek out the lowest possible energy state.   They are made from energy and the energy, while in a loop, continues moving at the speed of light.  Primary particles such as quarks and electrons gain their mass from the Higgs Field, which basically causes a constant exchange of virtual photons, causing the electron to have mass.  This mass is expressed as gravity, and we know gravity effects the flow of time…<br><br>So the statement we “have no idea what time really is.”, seems rather sketchy to me, we know time, gravity and mass are connected.