Occasional for me. Usually on weekends or evenings after somewhat busy days at work. More rare than that is during work, on my return from doing material pickups in the vaughan area.
Many, if not most, in that list, if they were children today, would likely be diagnosed with a (imo) completely bogus disorder such as “ADHD” and promptly drugged into socially acceptable, conformist mediocrity.After perusing such a list, I ask: Can it be that the greatest minds of the 20th Century were all common miscreants, who did not fully fathom "what they were doing to themselves"? Are we, with all our advances of modern science, more intelligent than they were? How many men today can you count that can measure to the list above? I am hard pressed to find a handfull, if that.