How does the interactive, choice-based structure of The Dinner Party manipulate suspense and reinforce the novel’s exploration of the nature of fate?

Many of the novel’s subplots concern cannibalism (or quasi-cannibalism—i.e., the consumption of sentient creatures). How does this motif serve the novel’s social commentary?

How does the Epilogue’s revelation of Jasper’s motivation change the way the reader understands chance, choice, and consequences in the novel?