I'll just put forward a thesis, you agree or prove me wrong:
"Sometimes it can be wise to enter into an investment without knowing a company's products in detail. Why? Because it forces you to focus on the potential of the company itself, rather than being influenced by personal preferences or prior knowledge."
Do you have shares that you have little to do with? For me at least $WSO (-0,87%)
$WING (-0,71%)
$UNP (+0,81%)