Board Thread:Theories and Speculation/@comment-31266380-20170213121035/@comment-734582-20170218232337

Lorenzo.r.1st wrote: but then, we should consider it waaaay more like magic, than anything else imo. True, but i don't see the problem with that. Ninjutsu has a fairly consistent rule set. And though it does a lot of fancy stuff, Ninjutsu is ultimately just another magic system. (although probably my favorite magic system).

One of the fundamental rules, i'd say, is that chakra can imitate any substance or idea. It's sometimes locked behind specific beings, techniques, weapons or kekkei genkai, but it's still there. I don't see why it can't imitate mass.