This, for instance, is science: https://www.ncbi.nlm.nih.gov/pubmed/26905895 https://www.ncbi.nlm.nih.gov/pubmed/26905895 Note how it is a meta-analysis of 130

This, for instance, is science: https://www.ncbi.nlm.nih.gov/pubmed/26905895 https://www.ncbi.nlm.nih.gov/pubmed/26905895 Note how it is a meta-analysis of 130 actual studies conducted by researchers at actual institutions aimed at establishing causal relationships and not a bunch of unrelated crime statistics pulled off of wikipedia and scattered sources and dropped into an excel spreadsheet.