- We don't know about X. - We don't know about Y. Therefore X and Y might be related! We don't know! How can you say they're not? This isn't a very convincin

- We don't know about X. - We don't know about Y. Therefore X and Y might be related! We don't know! How can you say they're not? This isn't a very convincing argument. Perfectly understandable for people to not want to spend much time considering it seriously.