How would you compare Life of Pi to "True Stories" by Margaret Atwood?

Margaret Atwood’s poem “True Stories” offers numerous ideas and images that resonate with Yann Martel’s novel Life of Pi. Both works are concerned with the fundamental nature of truth, and both have a wealth of marine imagery. One might almost imagine Pi speaking the poem’s first and last two lines to the investigators who interview him about what “really” happened in the lifeboat:

Don’t ever ask for the true story;why do you need it?

Atwood’s speaker tells the reader that the truth is contained or hidden within other matters: “The true story lies among the other stories.” For Pi, this was certainly the case. He was faced with a serious challenge: how to stay alive in a tiny boat. His vision of reality shifted at numerous points through the voyage. The second version that he finally told Mr. Okamoto and Mr. Chiba seems more plausible, although in places it too strains credulity.
The poem’s speaker also states that what they learned was the truth was not what they initially thought it would be. The speaker uses the metaphor of “sailing” and “the tide,” which connect with Pi’s ocean voyage. Among the things the speaker sails with are “luck” and some “good words”; these are both qualities that Pi carried with him as well.
In the poem’s second part, the speaker states that the true story had already gone and even never was in their possession before they sailed. This can be the case for Pi as well, if we think about his being a child whose innocence prevented him from understanding, or what might have been if the ship had not sunk. The poem’s speaker phrases this as

The true story was loston the way down to the beach,it's somethingI never had.

Among the things Pi never had were awareness of the cook’s true character and experience to prepare him to deal with the lifeboat situation. Some words Atwood uses to emphasize confusion and ambiguity could apply to Pi’s lack of clarity as well: a “black tangle,” “shifting light,” “blurred footprints,” “crumpled papers,” “a mess of colours.” As the speaker wraps up the poem, the summary seems apt for Pi’s ordeal as well:

The true story is viciousand multiple and untrueafter all.
https://books.google.com/books/about/True_Stories.html?id=ImEfAQAAIAAJ