Time, at least as we measure it, is an illusion. We may not know it, but we are all Masters of Time. Time expands and contracts with our thought, our mood, our place - our breath. Our observation of it. Like a beating heart, she breathes with us, tapping out a pace, a rhythm.

Time cannot be separated from her lover, Space. They are two aspects of a unified whole, different perceptions of the same thing, and together considered to be smooth and continuous.

Well, so says general relativity. Quantum mechanics suggests otherwise.

TimeSpace is pliant. Its geometry bends, curving to accept the introduction of a significant event like the introduction of a planet, and creating what we understand as gravity.

"What we understand..." is the operative phrase in this contemplation on RIDDLE: what is the speed of time?

* Dimensionally speaking space-time is not fixed. But typically, space is considered to be three-dimensional and time gets to be fourth.

* Time depends on how close to the speed of light a body is moving as it cannot be separated from space (the three dimensions) when an object is moving at this speed.

Down the rabbit hole we go!

* Gravity is yet to be included (some may say even 'discovered') in the "Theory of Everything."

* String theory suggests that in addition our three familiar, every day space dimensions there must be six or seven more!

So I guess, in short... Time and it's speed is observed in relationship to our personal system. It is a construct, a mathematical model. A limitation.

Some sages might offer that, while possibly also an illusion and in some measure still falling under the auspices of SpaceTime, 'No-time,' the 'Now,' 'Presence' is eternal... or at least infinite. And given our paltry understanding, limitless.