You're changing the meaning of my words. Just because no jackpot has gone forever without being won before doesn't mean it can't happen.
You said that 100% chance that eventually someone would win, statistically that is incorrect. Because every week there is always the possibility of no winner then there is no 100% chance of an eventual winner.
Not true because at the point when the jackpot exceeds the cost of purchasing every possible combination, a syndicate will step forward and purchase every combination thereby guaranteeing a win. It has happened in the past. And the syndicate really did win.