Determining the Class of a given Cellular Automata structure Is it possible to write an algorithm that can determine the class of a given cellular automata structure ? (ie. Wolfram's 4 Classes)

Thank you

Ricky
No. See

Culik, Karel, II; Yu, Sheng.
Undecidability of CA classification schemes. 
Complex Systems 2 (1988), no. 2, 177–190.