This should be a boon for dendrochronology. The limit of carbon-14 dating, iirc, is about 50,000 years. Hopefully this can be used to improve calibration.
A letter seems pretty safe. I wonder though if he might be taken aback at fan mail sent directly to his home address than through other channels. Maybe you might want to see what the word is on how fan-friendly and/or private he is.
Amazing what lies less than 70 light years from earth. Makes me think of our home as a shoal outside a calm lagoon but further out to sea there are raging seas, howling winds, sharks, and hazards of all kinds.
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