You could argue about who was right about some obscure fact all night long, or come up with your own creative theories.
Nowadays, in less than a minute, someone will look it up, killing the conversation.
My father and his wife still do this. I enjoy letting them bicker about dumb shit for five minutes before pulling out my phone and saying "OK, Google..." so they can hear the results and then get mad at each other and the internet for the answer.