[Avodah] How does Prozbul work?

[Ben Waxman via Avodah]

In an article reviewing this shmitta, Rav Melamed threw in monkey wrench 
that I had never heard before. In calculating the numbers of Jews, the 
true number (at least as far as shmitta goes) includes all those people 
who are Jewish through maternal descent. Therefore the number of Jews is 
much higher than we believe it to be.

In  RM's opinion, shmitta won't be d'Orayata again until the Messiah comes.

Ben

On 9/13/2015 10:01 AM, Lisa Liel via Avodah wrote:
> I think a better question might be: will prozbul still work when 
> shmitta is d'Orayta again?