In essence, Polkadot $DOT.X is a crypto project that wants to connect different blockchains together.

Unlike many of the other crypto projects, where they essentially provide a platform for transactions and dApps, Polkadot is working to help connect the $BTC.X $ETH.X $XTZ.X $ADA.X $SOL.X $ATOM.X etc. together. This will help make building and using blockchains easier for everyone.

I see Polkadot as the innovation that will help commercialize the entire Web 3.0/Blockchain ecosystem.