The R&D efficiency in pharma is exponentially _declining_. See Eroom's law, for example: https://en.wikipedia.org/wiki/Eroom%27s_law
[disclosure: I do some comms work for them]
The R&D efficiency in pharma is exponentially _declining_. See Eroom's law, for example: https://en.wikipedia.org/wiki/Eroom%27s_law