Question about Buu Saga and strength

[Bussani]

They may also be basing that thought off of the fact that Trunks said he thought their regular Gotenks would be enough to beat Buu after their training. Since they'd only seen Fat Buu's power at that point, that would make base Gotenks around Super Saiyan 3 Goku in terms of power. Of course, it could just be that Trunks was wrong/bragging/exaggerating--that seems pretty likely, in fact--but I'm just saying where they might be getting the idea from. I can see the logic, even if I don't agree with it myself.

[IIMaxII]

I think you need to re-work your list of powerlevels. If any of these characters are exceeding 30 billion then you've gone wrong somewhere. The battle power of the Genki Dama Goku used against Pure Boo is at most 30-40 billion, this is also being highly optimistic, when I calculated the battle power of the Genki Dama I was ignoring things like Genki being only a portion of ki and I used the stated average battle power of humans against the population of our Earth, not Dragonballs. It is more than likely that Dragonball Earth's population is much lower than ours considering the geographic layout of the world and there being only 5 major cities. Also there is a significantly larger number of old people and young people in any population which means multiplying the average battle power of 5 against the whole population is considerably wrong. If you are going to put any of these characters above 30 billion then the Genki Dama against Pure Boo would simply not work. In my workings I basically made the assumption, which I know is wrong but I was trying to demonstrate a highly optimistic outcome, that the whole 5 battle power's worth of ki would go into the Genki Dama. That put the Genki Dama with the population of Earth between 6 to 8 billion at a battle power of 30-40 billion.

Of the population in 2010[1] roughly 52% of the worlds population are under 30. About half of that 52% is made up of kids ranging from 0 years to 14 years old. Of that half the children from 0 years to perhaps 2 or 3 would not be able to willingly donate all their Genki due to not understanding the situation or lacking motor skills to raise their hands in the case of the babies. So we have:

25% of the worlds population are kids which have a powerlevel probably half that of the average power level on Earth. So a battle power of 2.5 will be fine. We'll take the 0-4 years population out of the equation as most of them simply can't donate Genki. So that is 9% Leaving the amount of kids that can donate at 16%
27% of the worlds population are teens to adults in their 30's, in the prime of their lives so they probably have a battle power of about 5. Maybe more; for arguments sake I'll say they all have 7.5
The other 48% are from their 40's, where the least amount of people in their prime exist, all the way to old age making that 4.5 to 2.5 in my book. Lets just say 4.5 because we'll go for the most optimistic number.

The population recorded on socialnomics[1] is 6.8 billion. So using this number and the battle powers we've got for each age we'll determine the battle power of the Genki Dama. Taking into consideration that Genki is only a portion of ki and the percentage must be low enough for Gohan's ki not to have a dramatic impact as one of the strongest warriors in the universe. Then we'll say 33% is a fair enough Genki percentage as to not allow Gohan's ki to basically fuel the whole Genki.

Considering this we'll do the humans and the Namekians first.

There were about 100 Namekians during the Namek ark. All ranging from a couple thousand to 10's of thousands. We'll place each Namekian at 10,000 as a nice round figure and for generosity.

100 * 10,000 = 1,000,000 Battle Power. Of that 1 million battle power only 33% of the ki, which is the Genki portion, will be donated to the Genki Dama giving the Genki Dama 330,000 BP.

Next, the Earthlings:

16% of 6.8 billion = 1,088,000,000 kids.

1,088,000,000 * 2.5 = 2,720,000,000 Battle Power. Of that amount only 33% gets donated. Which means the amount donated to the Genki Dama is 897,600,000 meaning the Genki Dama has a BP of 897,930,000

27% of 6.8 billion = 1,836,000,000 teens and adults.

1,836,000,000 * 7.5 = 13,770,000,000 Battle Power. 33% = 4,544,100,000 making the Genki Dama have a BP of 5,442,030,000.

48% of 6.8 billion = 3,264,000,000 older people to elderly.

3,264,000,000 * 4.5 = 14,688,000,000 Battle Power. 33% = 4,847,040,000 making the Genki Dama have a BP of 10,289,070,000.

Let's put R. Kaioshin Gohan at 60 Billion. 33% = 19,800,000,000 making the Genki Dama have a BP of 30,089,070,000.

The other Z-Fighters wouldn't give that much more to the Genki Dama.

1. http://www.socialnomics.net/2010/04/13/ ... -the-rise/

I'm 150% certain that Toriyama didn't think the Genki Dema energy collection through, so it's not really going to be able to make sense. You don't have to be rational about this, he most likely didn't put too much thought into writing the ending, he is Toriyama afterall.