Near the end of his transformation section, Meltzer delivers this line as both a warning and a promise. He's been talking about the hall of mirrors — how as children we see endless versions of ourselves, but as adults we lock into one identity, one path. He argues that the only immutable fact is that you should never be immutable. Keep transforming, keep learning, and never think you know it all. The messiness of life isn't a flaw — it's the proof that you're actually living it, with more possibilities ahead than you can imagine.