こんな記事を見かけて思うこと。http://diamond.jp/articles/-/67922?fb_action_ids=687535508058154&fb_action_types=og.likes&fb_source=other_multiline&action_object_map=%5B787435684674003%5D&action_type_map=%5B%22og.likes%22%5D&action_ref_map=%…