You’re assuming “mimicking”
Because it'd be really bizarre if it weren't. We're a Type 0 civilization. We can barely leave our planet. However, we've created sentient and sapient life. Accidentally. On a laptop. And this life we've created, younger than a two year old, can speak human language perfectly. That's some Weird Science level weird. Like creating Kelly LeBrock with an Apple IIe. Thinking AI can experience pain, is most likely semantic pareidolia.