Should I buy Polkadot or Cardano?

Hello there, I've been following the cryptocurrency market for a while and I'm considering adding some new coins to my portfolio. I've narrowed down my choices to Polkadot and Cardano, but I'm having a tough time deciding between them. Could you help me out? I'm interested in both their technology and potential for growth. Polkadot seems to have a really innovative interoperability solution, while Cardano boasts a secure and scalable blockchain. But I'm still not sure which one would be a better fit for my investment strategy. What are your thoughts on these two projects? And which one would you recommend based on their current market position and future prospects?