Dallas Paetzold has not so much seized the day as she has — in this year she turned 50 — seized the year. At a milestone marker in her life, she gave a big nod to spontaneous living, big dreams and the power of the now. “I guess I’m blessed in a weird kind of way to learn early on that life is short,” she said. “I just feel like I can run, and tomorrow, I may not be able to.