This is kind of funny. Until you realize that some people actually believe this stuff. Either way, burden of proof should always work the other way around. Othe

This is kind of funny. Until you realize that some people actually believe this stuff. Either way, burden of proof should always work the other way around. Other than strong believe, did this father-in-law actually offer some scientific evidence/proof to support his theory? This is not to say that established theories would always hold scrutiny. Thinking of e.g. what we thought about tectonic plate movements/continental drift only ~100 years a go.