# I will outlast all, what am I?

I cannot be moved although you may move through me.

You cannot hold me, but you can easily show me.

Fast or slow, my speed will never changed.

I will outlast all, at least until all are gone.

• My debt, clearly.
– MKII
Jun 9 '16 at 12:46

Time?

I cannot be moved although you may move through me.

One cannot move the time, but it goes by anyway.

You cannot hold me, but you can easily show me.

You can show the time - like on a clock dial.

Fast or slow, my speed will never changed.

Speed of time cannot be changed.

I will outlast all, at least until all are gone.

After all are gone, the time will still go on.

• your explanation for "Fast or slow, my speed will never changed." is wrong. The speed of "your answer here" is not fixed. Jun 8 '16 at 14:39
• @Marius In this case I have to disagree with you. The speed of time can change only relatively to an observer but from a subjective point of view it will remain constant. Jun 8 '16 at 15:11
• I don't understand how it is possible to move through time. Did I miss the invention of a time machine? Jun 8 '16 at 15:25
• Explanation of why this was the answer i was looking for: I cannot be moved although you may move through me- Obvious enough You cannot hold me, but you can show me- Intangible but you can show the effects Fast or slow speed never changed- this has more to do with perception... ex Time flies when you're having fun.. but the actual 'speed' of time doesn't change Outlast all, at least until all are gone- more philosophical as in: if no one is around to observe it, would time exists? Because of the nature of that idea, we can at least say time will last so long as there are observers Jun 8 '16 at 15:30
• @WaKai You're moving through time right now... time is passing by... tick-tock - tick-tock Jun 8 '16 at 15:40

You are

light

I cannot be moved although you may move through me.

You can't move light, but we move everyday through the sunlight

You cannot hold me, but you can easily show me.

It is impossible to hold/touch the light because the photons got no mass. It is easily to show light as the absence of darkness.

Fast or slow, my speed will never changed.

Speed of light is always constant => c

I will outlast all, at least until all are gone.

There will be always light somewhere in the universe. So as long as life remains there will be light.

• Wow, this was great!!! I had a different answer in mind... but definite kudos and +1 for this Jun 8 '16 at 15:24
• But certainly one can move light, for example by turning on a flashlight. Jun 8 '16 at 19:59
• @MegaMark: Light travelling different speeds in different substances is what causes refraction. Snell's Law describes this, and the index of refraction n in any substance is exactly the ratio by which speed is slowed, compared to light's speed in a vaccuum. Jun 8 '16 at 21:56
• c is the speed of light in a vacuum. I understand its speed can and does vary in other media.
– user15498
Jun 9 '16 at 2:50
• Why is there only light as long as there is life? Stars will still "shine" even if no one can see them. Jun 9 '16 at 7:10

Easy, a doorway :D

I cannot be moved although you may move through me.

self-explanatory

You cannot hold me, but you can easily show me.

Yup, you can hold a door, but not a doorway. As for showing where it is, there's no problem.

Fast or slow, my speed will never changed.

Obviously it won't, because it's static.

I will outlast all, at least until all are gone.

The doorway will silently and haughtily let anyone through and yet stay still, as long as the door is opened. Even after the doorway isn't used anymore it could still remain in place for some time (or could not in case of building demolition, but this doesn't really matter already).

• I love this out of the box explanation. +1 for you sir Jun 8 '16 at 15:35

The Universe

I cannot be moved although you may move through me.

You cannot move it because everything you move is relative to space. But the universe is the space.

You cannot hold me, but you can easily show me.

You cannot hold the universe, but you can view it / show it (well, part of it) using different tools or with the naked eye.

Fast or slow, my speed will never changed.

Again, speed is relative to something and since the universe is everything....its speed is 0.

I will outlast all, at least until all are gone.

According to the Big Freeze Theory the universe will expand and get colder until the there is no life left, or even possible.

• Very good answer... but not what I was looking for... +1 Jun 8 '16 at 15:22

MACRO (#defined) :D

I cannot be moved although you may move through me.

You cannot hold me, but you can easily show me.

Can not have a pointer to it (me thinks :P), can be copied to a variable and shown

Fast or slow, my speed will never changed.

Constant Location in the Read Only segment promises a constant access time (sans calculations and operations :D)

I will outlast all, at least until all are gone.

Has a global scope and life till program end, when all variables are released.

• A typo: it's #define, not #defined. Jun 9 '16 at 11:28

It is River

I cannot be moved although you may move through me.

That's right, nobody can move it just change in path by altering its course but you can easily pass through it.

You cannot hold me, but you can easily show me

Can't be contained(unless dam), but you can show its reflection or show by >! its activity like rock cutting, erosion etc

Fast or slow, my speed will never changed.

Fast during heavy rain or slow during drought like condition, but it is perennial maintaining its natural speed

I will outlast all, at least until all are gone

From ages it is there and will be there, until all its attributes rain or snow is gone (that will happen when everything finished)!>

• Not an "in-the-box-answer"... I like it. Jun 8 '16 at 20:02

My first thought was a little more poetic :)

I think it could also be

Love

I cannot be moved although you may move through me.

People who are in love would almost move anywhere (to get to teir beloved person)

You cannot hold me, but you can easily show me.

Love is not something you can hold (i.e. a material) but you can show love to other people

Fast or slow, my speed will never changed.

Love is always instant (at least for me it is)

I will outlast all, at least until all are gone.

(For the sake of the "perfect world") If you love somebody, you wont stop loving them, until you / they dont live anymore