Who is trying to fool people? It’s well known that 4D can be visualized with 3d projections, fibrations, etc. It’s a topic in Flatland (1, 2). Ancient news.

With this mindset, if we encounter something novel that doesnt exist or isn’t possible in 3d, instead of fighting with our brains we can simply say that a 4d universe allows such a possibility and in order to gain a 4d understanding which we have chosen to undertake we have to accept it.

wow so if I just say “it must be in 4d then” everytime i see something impossible in 3d I will slowly start thinking in 4d. thats amazing. /s