Key Points Cardano is a blockchain intended for smart contracts. It isn't the only one. It needs to do something better than its peers to succeed. 10 stocks we like better than Cardano › If I were an investor looking at Cardano (CRYPTO: ADA), I'd avoid buying until it demonstrates one specific thing. If it can do that thing, it probably won't have any problem soaring to new heights. Here's what needs to happen before it's worth investing in. Image source: Getty Images. This coin is missing a k ...