Remind me which fallacy it is the one where the argument treats many things as if they are one thing? I have done a couple medtech investments. They are very,

Remind me which fallacy it is the one where the argument treats many things as if they are one thing? I have done a couple medtech investments. They are very, very hard to DD. For plain tech I am just used to having enough background to be able directly evaluate the company. Much harder when one gets out of their own arena.