If I understand well the WP article about 'impact factor', it tells that in 2016 Nature was graded at 38 and Plos One at 3, so 'impact factor' might not mean to

If I understand well the WP article about 'impact factor', it tells that in 2016 Nature was graded at 38 and Plos One at 3, so 'impact factor' might not mean too much. And the criticism section of the WP article is quite long: https://en.wikipedia.org/wiki/Impact_factor https://en.wikipedia.org/wiki/Impact_factor