There are some bounds on gambling, like the fact that there are some people who know the outcome of the Oscars before they're revealed is why there's no betting on those awards (and other similar awards). I think the ability of individuals to decisively affect the outcome of litigation is similarly adverse to there being gambling.¹
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1. This is one reason why match-fixing in boxing is such a big thing (and it's apparently a lot more common than most people think, especially at the lower levels).
