The final chapter in the book of life

I've crafted a somewhat unconventional video serving as a partial summary for the last and concluding chapter of life's book.
How vast is the collective wisdom to be found out there, and what has been achieved compared to the total amount of wisdom I've managed to amass while teetering on the edge between upper middle age and the precipice marking its end? The most 'enlightened' version of me, which held the answers to most questions, likely existed around 36 years ago, and since then, it's been on a downward trajectory. I'm starting to suspect that I may no longer find that last puzzle piece revealing an answer that would make everything seem obvious, logical, meaningful, and sensible. This realization dawns, especially as, for every new piece found, I've discovered the absence of at least five more.