Nearly 50 years later, thousands -- maybe millions -- of chatbots populate the internet.
They are still seen as a benchmark in artificial intelligence and a common vessel for administering the Turing Test, which, boiled down, seeks to find an AI that can fool people into believing it's human.
It simulated the experience of speaking to a therapist by responding to specific words and phrases, and represented a significant step forward in the evolution of human-like AI.
But while some of ELIZA's "patients" took it for human, there were limits to the power of its engagement.
Meanwhile, Google has developed its own proof-of-concept chatbot to show off the power of neural networks, which mimic the human brain.With big names like Google in the game, we're getting ever closer to human-like AI.