For a blockchain that once ranked among the top 10 cryptocurrencies by market cap, Polkadot (DOT 2.79%) has spent the past couple of years flying under the radar. The Polkadot community has been building a powerful app platform for the web3 world, which should pay off as the web3 revolution gains momentum. As the official coin of the Web3 Foundation, Polkadot is betting that when it does arrive, the platforms with the strongest foundations will win. Polkadot isn't waiting around. But if web3's moment arrives in the next three years, Polkadot has done the homework to be a serious contender.