Not bad. I think your review hits the core tension: Four Thousand Weeks has a powerful premise — we really do have limited time — and you catch how that could be a wake-up call.

At the same time your honesty about the book "losing the plot a bit" after the intro is fair: the digressions, personal anecdotes and detours make it feel like good intentions without follow-through.

Your observation about decision-making being about "cutting off" alternate possibilities (opportunity cost) is especially sharp.

In short: interesting book, good ideas, but maybe not worth hyping as “life-changing.”