Edited sentence: After citing few times the pioneers, the less creative researchers joining the field may get the leadership in the number of citations.The h-index does not pay attention to the pioneering character of a paper, as at the very beginning nearly no paper opening up a new subfield will get a lot of attention.Therefore it makes an artificial bias in favor of researchers jumping into a new subfield in its maturity stages, when panels and committees have agreed that it is a fundable field.This issue can be taken care of only addressing also the temporal development of a field, and giving some extra-credit to early publishers rather than late contributors