That’s how long1 I continuously balanced on the wobble board just now.
From barely managing 10 secs on the first few tries, to celebrating a 20+ seconds balance yesterday, to a minute-long balance earlier today, and 90 secs now—it’s been a surprisingly quick improvement.
The law of diminishing returns will strike sometime. Then I’ll have to find a way of turning that plateau into a local maxima, rather than a global one. Till then, I’m enjoying the successes :)