īChakra is the resulting form of energy when two other forms of energy are mixed together. The two energies are referred to as "physical energy" and "spiritual energy."
That's fair enough.
Physical energy is collected from the body's cells and can be increased through training, stimulants, and exercise.

Spiritual energy is derived from the mind's consciousness (i.e. the soul) and can be increased through studying, meditation, and experience.
This section mentions how chakra is created, and that by increasing your ability in producing physical energy and spiritual energy, your chakra output can be increased.

But as we all know, everybody has a limit. Where and when this limit is reached, we aren't told.

Kakashi's a prodigy who was an ANBU when he was... 6? For convenience's sake, I'll use that as a starting point for his shinobi career. If he's 30 now, that means he's been in service for 24 years.

3 years ago, he was active for 21 years, and could perform 4(?) Raikiris. If one was to assume experience is gathered at a constant rate, then he'd have increased his spiritual energy by 3/21=14%

4 Raikiris x 1.14 = 4.56 Raikiris. Let's say Kakashi didn't fully drain himself after 4 moves back then. Even in that case, he'd only increase it to 5.

That is assumes that physical capacity was also increased at the same rate. I doubt that Kakashi could develop himself any more physically, so the above calculated effect is likely to be less.

We also assumed that spiritual capacity was increased at a constant rate. How much " studying, meditation, and experience" in these last 3 years compared to his experience and study during the previous 21 years (and he fought in a war no less), is left uncertain.


Having these two energies become more powerful will in-turn make the created chakra more powerful. Therefore, practicing a jutsu repeatedly will build-up experience, building up one's spiritual energy, and thus allowing more chakra to be created. As a result, the ninja is able to do that same jutsu with more power.

This same cycle applies for physical energy, except this time, instead of doing things like meditation, the ninja could, say, do push-ups.
This part is a bit weird since it mentions chakra becoming more "powerful", suddenly dealing with the quality of chakra now, as well as quantity.

It states that increasing the quality of the chakra will make your move more powerful, but it doesn't hint that you can use the same move at the previous power level with less chakra.

It doesn't really relate to our current debate.

(where did wiki get this from anyway..)