It is me again
Unfortunately I did not read all of the messages. They are more than 1.000 at the moment. I read maybe half of them.
Here are more stuff to discuss:
1. Let's say Vilma (Fred's wife, she is smarter than Fred) understood everything about 3d world. She can easily imagine the 3rd dimension. So, what can she do? Can she bend a line outside of her 2d world? I can not answer this question as "ABSOLUTELY NO!". I just answer it as "No, because the 2d world does not allow her to do so." Maybe she need to invent something to do this event. Or she needs help from Bob to take her or the end of the line out. Similarly if WE discovered everything about the 4d, we need something to bend our cube.
2. Can UFOs be Emily's tetranails. Because they appear suddenly and vanish suddenly, no radar contact, some weird lights etc. (I have not seen them yet.)
I have more questions but at the moment I want to see your comments. And it is better to discuss one or two topics at the same time. Thanx.