Board Thread:Naruto Discussions/@comment-4646462-20160626012036

The concept of chakra has been messed up a lot over the course of the series. The biggest problem, though, is that near the end of the series, chakra seems to pop up from nothing in a lot of cases, in direct contradiction to both the creation of chakra as well as nature energy. Notably:

1) Naruto can use Sage Mode despite being in close vicinity of a massive beast/tree that is draining nature energy, the energy source of Sage Mode, from the world.

2) Hagoromo's spirit that shows up in Naruto and Sasuke gives essentially the amount of chakra he had in life to the two, despite the tailed beasts being out in the world (actually, Madara having them at the time and becoming a TTJ to boot).

3) Naruto and Sasuke's chakra gifts are seemingly infinite, despite being absorbed twice by Zetsu (who should by all rights be able to absorb even a large amount of chakra in an instant, given how he managed the chakra from the bloated Madara).

4) (This is a good one) Obito Kamui'ing out of the afterlife, his chakra appearing from his ashes. A pile of ashes obviously cannot produce physical energy or host spiritual energy. It'd at least make more sense if his chakra ghost warped in above his corpse, but even then, like the Hagoromo example above, it's contradictory to chakra logic to keep your chakra in the afterlife.

5) Kaguya is sealed and the tailed beasts split from her. What happens to all the chakra she absorbed from everyone in the world? Everyone would be waking up really weak if the chakra went to the tailed beasts or stayed with her. Alternatively, the chakra could have been returned via the I Win button that is the Six Paths Chibaku Tensei.

6) Again, similar to Hagoromo and Obito, all of the past Kage can be brought from the afterlife and use chakra they way they did when they were alive.

7) The Boruto movie isn't immune. Most (if not all) of the tailed beasts' chakra is absorbed by Momoshiki, then Boruto blasts him on some planet very far away. That leaves the tailed beasts (barring Kurama) either gone or weak.

I could be wrong, but these are based off chakra being either a) finite and derived from the Shinju, or b) infinite and created by combination of physical and spiritual energy. I'm not sure if there's anything else regarding chakra that could explain at least one of these. 