I disagree, I think Time factory was the most coolest pillar art before the newest came out.
I really like it, It seems to suit

's mysterious theme. thats just how I feel about it.
to me, it represents an hourglass being somewhat manufactured or drained of its contents, the bubble like products that float from it represent Time itself inside those sphere-like objects, in a sense representing mini infinite time loops.
My visual perspectives on the bubbles:
A sphere represents Infinite Time loop more than any other Isometric shape, because its boundaries have no edge, If you were on a giant earth sized sphere with gravity applied to it (such as planet Earth's gravity) And you tried to walk to its edge, you do not fall, you keep walking.
however, imagine being on an Earth sized rectangular prism which has edges and limits to its boundaries, and with the same type of gravity.
Since Gravity is like a Down-force, You walk off the rectangular prism's edge, you fall straight off, gravity isn't going to save there because of the velocity of which you fall, Gravity most probably won't stop your fall and you will fall into empty space.
I imagine it that way, just a simplistic view of it, (please do not correct me on any scientific mistakes I have made, My aspect of it is only based on symbolism related to time loop.)
(Forgive me for sounding so weird but that's just my artistic aspect of it

)