79 years old (Born on December 20, 1945)
Happy birthday, Alasdair! Another year wiser, and yet your philosophical puzzles remain delightfully unsolved. Your groundbreaking contributions to logic continue to inspire students and colleagues alike—though we're still trying to decode some of your more intricate arguments!From lecture halls at the University of Toronto to international conferences, you've enlightened minds with wit and wisdom. May this birthday bring you as much joy as when you finally cracked that stubborn logical paradox—or perhaps just a slice of cake that's easier to digest than modal logic. Here's wishing you laughter, happiness, and many more years puzzling us all!