I also think the notion of 1d or 2d is just imaginary. I mean there is imho never anything in universe like 1d nor 2d.

so even before starting string theory introduction knowledge, it feels like incorrect framework to me just due that there is 1d strings concept there.

of course string theory's formalization might be correct eventually. but it might be just mathematically a formalism that maps matches to existing universe it could be i mean its maths might be matching to existing universe definitionset. but otherwise, in reality imho there is no 1d nor 2d at all.

everything is 3d imho. and there is no other dimensions every dimensions is in that 3d sphere. of which is like isomorphic to a hmm direct sum of dihedral groups of infinite length but somehow movement on those has some compact logic. and direct summed other group is a nondihedral group but just depicts rotations on a sphere type group. hmm again infinite. so that direct summed stuff is what everything is imho. 

i mean I do not think there is more dimensions than what is inside other than 3d.

but of course one can not fully either reject idea that we are constrained in a lower dimension and that there topological thought experiments of e.g.. D2 to D3 or so like topological thought experiments might work out to define some maths there. of course thats also possible. 

but so I do not reject that there could be higher dimensions totally.

but I do reject at least 1d or 2d existence. there is nothing like 1d or 2d surely. 

imho its most possibly not higher dimensions either. but thats possible. I meaan, such universe theories which places our universe to lesser dimensioned region. but again, imho its also very and actually much more possible that this above group definitions or just simple 3d sphere would cover already all existing dimensions.

this be my ideas for these topics.

I have rejection to concepts like 3d. or at least to 1d or 2d. or thinking this universe is constrained already in 3d dimensions. no its not 3d. its just particle physics force system operates in a manner that results in Newtonian mechanics to have some 90degree sep. effects like. e.g. if you pull in y direction it does not have effect on x or z as experimentally shown it moves to such logic. but this does not mean any dimensionality concept at all. i think adding dimensionality concept there is just coupling how particle physics works or their maths structure unnecessarily to a superficious dimension concept.  (extraneous either).  its rather posibly related to how particle systems works to have a force applied in y to not have pull force in x z directions. its then very unnecessary coupling of a dimension concept to the force system of particle physics imho to think then this means there is 3 separate dimensions alike logic. no just look to sphere think there is infinitely many directions there. and just because particles mathematical structure only works out like such Newtonian mechanics effect does not mean x-y-z is dimensions at all.  there is already infinitely many directions in sphere itself. not just x-y-z at all. i mean this universe already has infinitely many dimensions. you do not have to setup some topological thought experiments (superficious) to think how 4d would be like. thinking looking to our very superficious 1d or 2d concept. what actually it is imho, there is none 1d or 2d at all.  all is sphere and infinitely many directions system already can iterate. so our universe is not constrained in 3d dimensions at all. only newtonian mechanics has some such realization but its most possibly due to particle physics systems mathmetaical structures there.  

so this being bound strictly to the topological tradition to think higher dimensions is imho silly. i mean we already have all dimensions inside sphere imho. of course it might turn out that really there exists higher dimensions somehow. thats of course not falsifiable. there could also be built theories like that of course which would match with equations of this universe. but again, thinking that our universe is 3d is imho incorrect. we already have infinite dimensions in our universe imho.  no need to add higher dimensions. its already infinite. but, again, it could also have higher dimensions with inductions based on topological reasoning tools like how D3 would be? e.g. by inductive reasoning of how D2 is to D1 alike logics. one can not refute these of course. there might be D3. lets call it hyper sphere maybe right? for such 4d concept. but again it is much more effort to create a universe region where 4d universe have 3d universe regions where everything is 3d.  i mean it could be also like that surely. one can not refute that either of course. but imho our universe is also already having infinitely many dimensions inside D2. 

I just find such topological inductive reasoning e.g. how D3 could be alike by having base condition of like reasoning from D0 to D1 and D1 to D2 to define how D3 is. (4th dimension). its of course nice/beneficial to think such ideas. in the end it might turn out universe is also D3. but I do find it really incorrect to say our universe is of 3 dimensions. its imho definitely not. its already infinitely many dimensions. but of course D2 having infinite dimensions could also have a D3 version. that we cant refute. I mean hyper sphere. higher dimensions.  but again, that would require some universe theories where our universe region somehow lacks that hyper dimensions. thats also possible. but what I usually tend to believe that there is no hyper spheres or i mean higher dimensions already. but of course I cant claim higher dimensions theories are false either. but I tend to believe more to the contrary, that there is no D3 universe  (with hyper spheres topologically).  but i cant refute nor claim such theory is impossible either.  i just onlyt mean our universe already has infinitely many dimensions. of course there could be D3 with infinitely many dimensions again.  that to not possible to refute either. but what I mean is this literature of 3d literals, or constant literature of saying its 3d in this universe, I find it wrong i mean incomplete. 

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