Expertise Exchange

There are mul­ti­ple fields of knowl­edge that are very hard to learn about and where it’s hard to find a ra­tio­nal per­son to give you good an­swers about the field of knowl­edge.

I want to start this thread to give peo­ple the op­por­tu­nity to re­quest ex­per­tise in cer­tain do­mains that they want to know more about but have a hard time find­ing good sources on.