You're supposed to click "new conversation" when changing topics.
> You can continue within the same conversation for a new topic. There's no need to start a new conversation. Feel free to ask about a different topic, and I'll do my best to assist you.
With humans there is usually a non-verbal signal letting the other person know you changed topics.
This happens all the time in a social group setting though. Not much confusion ensues.
Sometimes I spend several minutes of a conversation trying to figure out which thing she's talking about, because we've already covered like twenty different topics in the last ten minutes and she seems to just switch around at random and with no warning.
Sometimes I get enough context that I can make that swap or stack pop, but many times not.
But yah, this is exactly what I mean - without some cue, neither humans, nor machines, can tell when you switch conversation.