Rather than getting caught up in the bullish excitement of ACT, let's look at a critique of the technology. Sandox et al., 2021 gives us a really good critique of Tarbox et al. and helps to focus future ACT research on a direct assessment.

Sandoz, E. K., Gould, E. R., & DuFrene, T. (2021). Ongoing, Explicit, and Direct Functional Assessment is a Necessary Component of ACT as Behavior Analysis: A Response to Tarbox et al. (2020). Behavior Analysis in Practice, 15, 33–42. https://doi.org/10.1007/s40617-021-00607-2