Trees don't fix air bubbles like plumbers fix pipes; they simply grow new plumbing. The xylem vessels blocked by an air embolism become dysfunctional, and the tree just produces new ones to take over the water transport. My botany textbooks in Delhi’s library are full of diagrams showing this, not of repair mechanisms. It’s a lesson in moving on, not fixing—like when my father’s old sewing machine seizes, and he just sets it aside to use a different one.
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