thefredman Messages 12 Reaction score 0 Thread starter Jul 2, 2016 #1 From the perspective of a 4D observer would 3D infinity appear to exist? Why/why not?
PeterDonis Mentor Insights Author Messages 50,420 Reaction score 26,464 Jul 2, 2016 #2 thefredman said: From the perspective of a 4D observer would 3D infinity appear to exist? What does this mean?
thefredman said: From the perspective of a 4D observer would 3D infinity appear to exist? What does this mean?
mathman Science Advisor Homework Helper Messages 8,130 Reaction score 575 Jul 3, 2016 #3 Reduce to 3d observer looking at 2d infinity. You will be able to answer your own question.