Factor Alia the Sentimental of the Sign of One
"You want to be careful: Staring at the Spire for too long drives some sods barmy, and it's not just because the bleeding thing's so big. The Spire can change and becomes important to them...they perceive the clouds as though they funnel toward it, you hear it in your dreams calling to you, you realise that it is the centre of the Multiverse. More importantly, that it is the centre of my life. Did I say 'my'? Uh oh..."
Minima, a Denominator of Mechanus' Mathematicians
"The Spire is a warping of normal Cartesian geometry. As you go toward the Spire, it never appears to get closer due to this warping factor. You continue to pass landmarks as normal, but no matter how far you go, there's still more. It's like a rubber tube of infinite length; put one end of it over a conical wedge and push. The lower part of the cylinder fans out to form a circle, but this is just a stretching, it does not affect the actual circumference of the tube's end, just the relative one. Do you follow me...?"
Maxima, Sister to Minima, and also a Mathematician
"Some berks are so bold as to claim the distance it takes to walk a complete circle around the Spire is constant, independent of a person's location on the Outlands. However, since travel times on the Outlands don't rely on distance, the whole theory's untestable! Addle-coves!
Minima, in Response
"Also unprovable, of course, but elegant."
Minima, with another of her Pet Theories about the Spire
"The entire argument of whether Sigil exists on top of the Spire or not can be argued in an easier way. Simply line up the top of the Spire with the tops of two object of known height far away in the Outlands. This way, the angle between them and the Spire can be calculated. However, any Planewalker knows that the distance that has to be walked from a given point to another on the Outlands varies.
Cerebella, a Cipher Mistress of the Mind
"All that maths is just so much addled nonsense. You can't add infinities, and you can't reduce the Spire to numbers. Just stop talking about it and get on with your lives, you sad berks."
Maxima, with her own Idea
"Another way to measure the height of the Spire would be to climb it, but as it turns out climbing it would take longer than most cutters'd be able to keep a grip on the rock face. People just assume that the Spire's infinite in height; although it appears to be so mind bogglingly big that it always looks bigger than anything else in the Outlands. For most purposes, that's a reasonable enough approximation."
Povrilo of Iridescent Hues, Artist and Colour-Seeker of the Sensates
"Sigil is pictured as floating above the Spire many times, but I reckon it's actually balancing on the top of the Spire. It might be touching or it might not be, but the idea of balance implies it might be possible for a Power or really strong winds to blow the Cage off the top! In fact, the chant goes that's why the Lady destroyed Aoskar: because he rocked her Birdcage."
Bureau Chief Invigilus Traal of the Fraternity of Order
"The Lady created the Cage as a pocket dimension (that's her main skill, after all), as opposed to making it out of whole cloth and causing it to rise and float over an area even the Gods powers don't work around. The Cage ain't a natural part of the Outlands, cutter, and it sure as Baator don't belong over the Spire."
Dorina the Thrice-Returned, Recruiter for the Godsmen
"Think on this, berk: the petitioners of Outland Powers who die in Sigil are able to return to their Power's essence, thereby not being wasted. Thus Sigil must be part of the Outlands, rather than one of those strange-fangled pocket dimensions. Cutter: Sigil don't look like a bag of holding, and you sure don't have to climb a rope to get up to it."
Lorr, a Measure Five of the Hardheads...err...Harmonium
"The Harmonium's official line is that Sigil sits atop the Spire, plain as day (unless it's night). 'How then can it be infinite?' you might ask. If you do ask this, berk, then you can't have seen it. When you're standing under the Spire, you can see it's infinitely tall. And cutter, that's a terrifying sight!
Tramman Hoosker, a Guvner, after some bub in one of Sigil's bars
"Now berks, listen to an old Guvner's truth about a long term scientific research about Spire butterflies, the Spire and the flow of energy.
Remmer Tal of the Doomguard, noted for his surprisingly Philosophical Outlook, though this doesn't make him any less depressing
"The Spire? That's simple. The Spire, you see, is a creation of the gods that created them. They feed on power from worshippers and, by following their petty desires and opposing one another in doing this, thus feed the spire. Did I mention that the Spire is the destination and source of all Entropy? No? I thought not.
Oax, of the Xaositects
"Really spire is. Big the big. Thing the sometimes a top Sigil, Cheesecake is sometimes on. Rules chaos all."
Sector Anacoluthon of the Mathematicians
"The Outlands are curved in four space dimensions, see? The Spire in fact points away from the normal surface in more ways than one.
Tariq d'Elamar, half-elven monk of the Ciphers, Observer of the Infinite, Master of an Instant, (and incidentally) Emperor of a Prime desert realm
"The Spire is the source of all the Multiverse. Cutters who take the time to walk through the Outlands often notice that the time it takes to move from place to place varies greatly, and of course the phenomenon of planar slippage (where territory of one plane slips through a gate and into another) is well known. The real dark of the matter is, all three phenomena are related.
Sir Twist the Decay Knight (by David Byrne)
"I don't care how big it is. If it drives a sod barmy and he tries to jump or fly at it and dies in the attempt, it's helping Entropy."
Neefreet of the Godsmen (by Emlyn Shannon)
"The Spire isn't really much to make a song about. It's quite a simple matter of the Lady showing off.
Alute Benzar, Dustman (by Joshua Jarvis)
"You can't see Sigil from the Spire. I tried it and all I saw was a Spire extending upward until it was out of my sight range. Perhaps the death of magic towards the centre of the plane caused Sigil to be elevated to the next form of existence, visible only to those who are also at that level of death (or perhaps you are all barmy and you can not see Sigil in which case you should go to Bedlam where you'd fit in just fine."
Dar'kess of the Doomguard (by Emlyn Shannon)
"The Spire? Well, I'm not sure about the Spire, but I suspect that it's the force of Creation. See, some berks'll try to tell you that the Outlands and the Spire compliment each other, one being a huge pinnacle and the other being flat as a pancake. Well, I'll tell you something -- the Spire ain't the opposite of the Outlands, its the opposite of the great ditch surrounding the Great Ring.
Myriad opinions from as many cutters who're planewalkers, Outlands natives, or just like to stick in their oar when asked.
Optional rules to simulate the draining effect of proximity to the Spire on psionic abilities.
Learned graybeards showcase their studies on the Spire and share some of their barmier theories.
How can you see Sigil if the Spire's infinitely tall? What happens if you jump off the Cage?
art by Jeremiah Golden and Zak Arntson