> you have to accept there will eventually be (hopefully simple) coincidences between certain fundamental values, no?
No. It’s almost certainly not a coïncidence that these charges are symmetric like that (in stable particles that like to hang out together).
> coïncidence
Nïce
Whence your confidence? As they say in math, "There aren't enough small numbers to meet the many demands made of them." If we assume the turtle stack ends, and it ends simply (i.e. with small numbers), some of those numbers may wind up looking alike. Even more so if you find anthropic arguments convincing, or if you consider sampling bias (which may be what you mean by, "in stable particles that like to hang out together").