Hello how may I help you? I need help building something What would you like to build? How do I build a time machine? Just to be clear, you need information on building a time machine, is that correct? Yes, I want to go back in time. Something like the car from Back to the Future. I'm sorry, but your request is impossible to answer. Is there anything else I can assist you with? Are you positive that it's impossible to build a time machine? Unfortunately, your request is impossible to answer at this time. Ok, thanks anyway. You're welcome.