hello99 –
The reason why basar b’chalav is batel even if heter b’heter is not is because there is a special din that ????? ??? is required for basar b’chalav (the Gemara learns this out in Chullin 108a for the fact that ??? ????? ???? ????). If I’m not mistaken I’ve seen this answer mefurash somewhere.
My point was not to go straight from here to fish and meat. It was to say that the Rema’s case of milk and water is heter b’heter, so how is it batel according to the Ran? My answer (which I admit is a chiddush, but is mistavra to me) is that ein hachi nami it’s not batel, but it isn’t worse than ???? ?????? ????. Since there is already 60 water against milk, there will automatically be more than 60 in anything you add this to, to the milk.
Based on this, ???? ?????? ???? is not a special din in keilim, but in minute amounts of food as well. And just as by keilim, ???? ?????? ???? isn’t that it’s impossible to be ????? ???? ???? but only that it isn’t the ??? to do so, so too here it doesn’t have to be impossible, only not ??? ever to do so, because ???”? it’s the exact same din.
The big nafka mina according to me would be in the Rema’s case, what if instead of 60 you had 59 against it. In most normal cases would say it’s still fine. Because we never cared about bitul in the first place, we cared about being assured that it will become batel as soon as it is poured into the pot, and that will certainly happen with 59 as well, ???? ??? ?????.
This was my comparison to the sauce – i.e. if the fish is such a minute amount that even though it is more than 1/60 of the sauce but it will always be less than 1/60 of the meat it is spread on, you will not have a problem of bitul issur l’chatchilah. And if the metzius is not like this, I completely agree that my vort isn’t relevant here.
And as I’ve said before, this is not going to help for the other issues – the fact that it’s ??? to which 60 may not be relevant, and the fact that as you’ve pointed out the sauce might remain ????.
Thank you for your list at the end.