Mercury you messed up in the message log 1. The 7th dimension is not a line between different states of our same universe. It is a line between two different versions of the Universe, that had different origins. 

All possible combinations of all possible timelines in stacks and folds of the Universe we currently exist in (with the origin of the Big Bang) is a 6th dimensional point. Your explanations states that the other point that a 7th dimensional line would connect this 6D point to also had the same origin. In reality the line I just described is simply a 5D branch within the 6D point. 

A 7D line would connect our 6D point to our universe, yes. BUT the version of our universe that this 7D line connects our 6D point to is a 6D point that had a different origin than the Big Bang. As far as we know, only imagination can determine what that alternate origin is, and it wouldn't be surprising if that other 6D point had completely different laws of physics.

Therefore, an 8D branch would be a third 6D point that is different from both our 6D point and the 6D point we just drew a line to, and this 3rd point exists on a line that touches either of the two 6D point we first experimented with, but at an angle that is not parallel to the first 7D line we drew. 

And as you could predict, 9D is the folding and stacking of these branches, the same way 6D compresses the branches of 5D, and the same way 3D compresses the branches of 2D.

In reality, each "6D point" I've referred to, while they ARE what I've described them to be, they are treated as points in the 7D whenever you draw a line in the 7D. An entire Universe's folds and stacks of 5D branches (which we refer to as the 6D) is seen by a 7D creature as only a single point.

In this way, the total combination of all possible folds and stacks of the 8D branch system (which we refer to as 9D) is seen by a 10D creature as a single point. The difference is that we've run out of things to draw lines to.

Just like how 1D treats 0D as a single point, 4D sees 3D as a point, and 7D sees 6D as a point, 10D sees 9D as a point, but 10D is also a point within itself. 10D is simply what 9D looks like as a point, so in a way, 10D is really the same thing as all of 9D, just looked at in a different way.

The real reason we can't draw any more lines is because the entirety of 9D accounts for every origin of the Universe and every connection between all of them. One could try to argue that a line in the 10D would actually be a connection between all combinations of all origins of OUR universe connected to all combinations of all origins of a COMPLETELY DIFFERENT universe. At first this seems legit; we've considered everything possible about us but what about someone else?

The truth is that if we consider all combinations of all origins of OUR universe, then there ISN'T any other Universes. The term "Universe" literally means everything ever. The "different" Universes one would want to account for then would already be accounted for back in 7D and 8D. Each one of those different origin Universes ARE the different Universes that exist, period. They don't exist next to us, we can't fly there in a space ship. But they exist in the same way you would think other timelines exist. The Universe is the only encompassment of anything that can exist. We can't have multiple Universes existing in the same 10D, otherwise neither of them would be "universes" by definition.

So yeah. Merc, fix your shit.