Why is the liver so weirdly regenerative?

The human body has poor regenerative abilities in most organs—kidneys decline with age, gums don't regrow, and damaged tissues scar permanently—yet the liver uniquely heals without scarring, maintains strength with age, and can regrow to full size even after losing half of itself. The author speculates this disparity may actually be beneficial, as fragility in most body systems could serve evolutionary purposes that full regeneration would undermine. The article explores this paradox by contrasting the liver's exceptional regenerative capacity with other poorly designed biological features like menopause, inability to regrow limbs, and immune rejection of transplants.