In theory, if using a computationally universal CA, you can simulate any other CA with it. However it might require a lot of sub-steps to do so.
No claim is being made that this is a new kind of computation.
No claim is being made that this is a new kind of computation.
For instance the Game of Life is a subset of 2-d binary state CA, the rule only takes the totals of neighboring cells, and so is a subset of those CAs with rules that care about specific patterns of neighbors.