Ping-coincidence lattice "with a twist":
a "Null-Strut Wheel".
"Can this set of causal relations (with 8-fold rotational spatial symmetry) be found in a spacetime region of Schwarzschild geometry ?"
(PSE/q/845793)
(Enjoy it while it out-lasts the drive-by-assaulting ...)
#PingCoincidenceLattice #NullStrutWheel #Spacetime #Relativity