Sometimes it's okay to bet on the impossible, but over time, the outcome will likely be zero, and you'll just be throwing away your money.
Rather than chasing high odds that likely won't yield anything, it's better to bet on normal odds to potentially profit.
Don't be tempted by extremely rare events, as they're extremely unlikely to happen.
For me, betting on something impossible and bet on a big odds parlay are two different things, because impossible bets are 99.9% likely to lose. But if you build a parlay from small odds, that have a higher probability of winning, and you combine them into a big total odds, then in my opinion such a bet has a much better chance to win. And these bets will win more often than bets with huge and impossible odds. Although I rarely bet on high odds, and I definitely will not bet on something impossible, because I have never won such bets, and I seriously doubt that I ever will.