  The Free-Energy Principle (FEP) [1-3] has been adopted in a variety of
ambitious proposals that aim to characterize all adaptive, sentient, and
cognitive systems within a unifying framework. Judging by the amount of
attention it has received from the scientific community, the FEP has gained
significant traction in these pursuits. The current target article represents
an important iteration of this research paradigm in formally describing
emergent dynamics rather than merely (quasi-)steady states. This affords more
in-depth considerations of the spatio-temporal complexities of cross-scale
causality - as we have encouraged and built towards in previous publications
(e.g., [4-9]). In this spirit of constructive feedback, we submit a few
technical comments on some of the matters that appear to require further
attention, in order to improve the clarity, rigour, and applicability of this
framework.
