If only the tiniest percentage of people believe in the tiniest chance for monero to be able to fly we're gonna be well over 10$ a coin. That actually makes al the selling and shorting remarks at these levels quite amusing actually.
For sure. A successful and widely used cryptocurrency will likely have a capitalization in the trillions. That's a million USD or so per coin for coins with millions-of-coin supplies like BTC or XMR (technically XMR has unlimited supply but it will be in the millions for 100+ years so still trillions is about a million per coin in practice).
You only have to believe something has a 1/100000 chance to reach a million USD for it to be worth 10 USD.
This also indicates the silliness of any cryptocurrency that claims to be in the lead on the basis of current market caps (ignoring the liquidity and manipulation factors). That's like being one inch ahead of the starting line in a marathon.