I think that we could run Scripting on a parallel chain. Main chain won't be hurt if something goes wrong.
Very interested to see how this "parallel chain" stuff is going to work - and yes I guess it could be the safest way to do the "smart contracts".
I don't like word "contracts" coz:
1. We
stole borrowed Ethereum's idea, let's rebrand it at least.

2. Smart Contracts is another concept of BCNext, it was supposed to be data-driven.
Maybe this is the "real ace" that Nxt has up its sleeve?
No. Nxt has only 1 "real ace" - Transparent Forging. All the rest is just borrowed ideas, IMHO.