Turing Machine-Like Formalism for The Actor Model
computer scientists generally are of the consensus that the Church Turing thesis[1] is correct and definitive, ie that Turing machines describe computation, and that more powerful forms do not really exist, and take assertions that some model is "more powerful" than Turing machines with extreme skepticism, even near hostility.[2] neophytes to the field who dont fully understand the concept are prey to near-marketing slogans of some theory as "more powerful" than Turing machines but those claims are rarely made by mainstream/reputable computer scientists.

but as a flip side to this, many models of computation are Turing complete. 
therefore in CS there is in practice mostly a tolerant, "live and let live" attitude with many different models of computation proliferating depending on what is most relevant and convenient for the problem studied. most basic programming models are Turing complete with basic structures such as memory, conditionals, and loops, subroutines etcetera. so more reasonable claims are, "model [x] is better suited to study [y] because [z]". the Actor model focuses on message passing, communication, concurrency &amp; some security.

nevertheless there is some mostly philosophical debate in CS about some models being "more powerful".

[1] Church Turing thesis

[2] Interactive models of computing vs Church Turing thesis