Deborah Apthorp pointed me to this excellent post by Uta Frith. It reflects a lot of my own feelings about how science could be improved (though I haven’t worked out how to balance these ideas with my personal need to get a permanent job in a fast science environment).
It reminds me of an idea that I heard from Felix Wichmann (not sure on origin) that every scientist would only be allowed to publish some number (e.g. 20) papers in their entire career. This would create pretty strong incentives not to “salami slice”, and to only publish results that you felt were deeply insightful. Of course, how to evaluate people for tenure / promotion in such a system is unclear.