Evolution has already proven that strong AI is possible. It is up to us to discover how. It is only a matter of time.
Get back to us when you have an algorithm for love and art and petrichor.
I'm not naive enough to think that it can be solved in a short time. I do think that it is worth it for a person to spend the rest of their life working on it. There is just nothing more exciting than AI in my opinion.
Just imagine the possibilities...
(At Trimble, we had fully autonomous tractor PoC in 2001)
"Deep" AI (self-directed / human-interactive) will take more time and effort, and can have (simulated) emotions if so programmed; the determinate is how to sell such as a viable product or service that doesn't freak people out too much or do something stupid like place untrustworthy systems in charge of live nuclear missiles.