I really like games with deep philosophical implications or thought provoking narratives and I like what you're going for with this one. That said, the passage of time feels too uneven; the first years pass like a flash while the stage starting from year 20 feels super long.
The concept of the environment actively changing your character is super cool but I felt like I didn't really understand how that worked. Gameplay is just moving around picking collectables so adding some kind of mechanic could help with the game's pacing and make it feel more engaging.
One more thing I'd like to note is the use of dyanime music to give some feedback of the current game state or the bubble's condition, which is a great addition to the game but then again, I'm not sure what exactly what was happening most of the time.
I love the concept! but the gameplay needs to be more engaging is what I'd say about this game.