Re: IE *p and *b

>
> We can. The question is how much we gain by doing so. The pair would

be

> isolated in the phonological system and the game may not be worth

the

> candle if we solve the "mystery" of *p lenition in Celtic only to
> complicate the straightforward development of *p > p almost

everywhere

> else (*p displays no strange behaviour outside Celtic).

You can the same about laryngeals (especially in front of the word,
before a sonant) that serve no other purpose that to
explain "anomalous" a- in Greek and Armenian.