Let's make this birthday one to remember.

90 years old (Born on February 16, 1935)

Happy Birthday, Stephen! May your day be filled with as much joy and laughter as the countless adventures you've inspired—from grooving through Haight-Ashbury's colorful streets to planting seeds of peace at "The Farm." Your legacy is proof that tie-dye shirts never truly fade out of style.

Your tireless dedication in founding Plenty International has shown us all how activism can blossom into meaningful change. Here's hoping this birthday brings you plenty more reasons to smile—after all, anyone who turned communal living into a global movement deserves endless cake (organic vegan carrot cake preferred). Keep shining on—you timeless hippie hero!