Daniel MacArthur at Genetic Future wonders if genetic testing will bring about the demise of private insurance companies, particularly in countries with public healthcare systems. The thinking goes that if people do not have to share genetic testing information with private insurers (as is the case in the UK until 2014), people who think they will fall ill will buy private insurance and the healthy others will rely on the public system. Then, the insurance premiums will skyrocket and the system will collapse.