Three stars is generous. Toward a Philosophy of the Act is Bakhtin's very worst. That makes sense, because it's a super early career manuscript which was discovered in a severely damaged state. Still, there are awesome conceptual resources to be mined from this dumpster fire. I recommend it only to academics who are after that kind of thing. To spare you from a migraine, here's a summary of the parts I found most interesting:
Bakhtin’s philosophy situates human identity in the act of becoming: a perpetual process shaped through dialogic relations with others and the surrounding world. In this miserable book, he explains that each person’s existence is a once-occurrent event existing in a unique, once-occurent context. People are answerable for their actions because no one else can act from the same vantage point. To live ethically, we must answer for how we choose to architect the world with and from our own “surplus of seeing”. The surplus which others provide completes aspects of ourselves we cannot perceive directly, while our perspective completes theirs. In this way, the self and the other are enmeshed in a dance of continual co-authorship. Importantly, this dynamic makes identity fundamentally relational and unfinalized.
The carnivalesque offers somewhat of a cultural enactment of this principle of becoming. Carnival suspends and subverts standing hierarchies and fixed meanings. It creates a temporary social order in which transformation is not only possible, but celebrated. The grotesque body--emphasizing openings, excrescences, and cycles of degradation and renewal--unapologetically symbolizes the unconfined, ever-evolving nature of life. Masks, parody, and inversion liberate participants from the constraints of singular identity, much as dialogic relations in everyday life liberate the self from solipsism. Carnival’s linguistic play, in particular (blending sacred and “profane”, official and “marketplace” speech) creates a liminal, playful, imaginative space in which meanings and identities can be collectively and nonjudgementally reworked and explored.
For Bakhtin, both the ethical sphere of the answerable act and the cultural sphere of carnival reject isolation, closure, and abstract universals detached from unique lived experience. They affirm that identity emerges through situated, embodied participation in the ongoing event of life, where meaning is continually negotiated in contact with others--a moving target never meant to be pinned down. Becoming depends on the carnivalesque spirit--on rawness, openness, relationality, play, extrication from temporality, and the creative renewal of self and world.