FYI: Have you ever ridden a roller coaster in the dark? As you were getting situated, the attendant probably told you to fasten your seat belt and to hold on to the safety bar at all times. You felt confident you would feel good when the ride was over but knew some stomach-churning periods were along the way. Worse, since it was dark, you didn’t know when those tough moments would come, how long they would last, or how dramatic they would be. Your job was just to not panic and hold on.
Regards,
Ted
https://www.advisorperspectives.com/articles/2018/12/17/vanguard-watch-out-for-the-factor-based-roller-coaster-ride