dbgtFO wrote:It would seem that Saiyans mating with Earthlings simply produces a powerful hybrid.
In Gohan's first appearance as a 4 year old he's already hiding power far surpassing his father and that's without any training. Gohan though being a little a kid, who has never fought or trained before isn't aware of his great power and only used it, when under intense emotional stress.
Goku is different in that regard (and maybe all full-blooded Saiyans are?), as he is fully aware of his power and can control it just fine. It should also be said, that Goku also got training from Grandpa Gohan, so we don't know how much control he had as a 4 year old, but DB minus at least implies he had some, or maybe that's just pure instinct?
In any case it would seem like, while the Earthling Saiyans are naturally more powerful, than the normal Saiyans, their Earthling mentality overshadows their Saiyan fighting instincts, thus full blooded Saiyans like Goku and Vegeta will eventually end up more powerful, as they are willing to apply themselves more, whereas the halfbreeds aren't. Furthermore it seems that the full-blooded Saiyans or at least Goku and Vegeta have more of an idea of where they have to improve themselves, whereas the half-breeds all seem lacking in this department. Both Goku and Vegeta figured out that there was a level beyond SS, both realized(Vegeta implicitly) that taking the bulky forms too far would hamper them and now in Super, both seem to realize that training in their base forms without going SS will eventually help them reach the next level(SSGSS).
This aptitude at figuring out how to improve themselves explains why Future Gohan was such a failure. Despite having more than a decade to improve himself Future Gohan never got past the initial Super Saiyan level. Being the number 1 in terms of potential doesn't amount to much, if you don't know how to draw it out and clearly Future Gohan didn't know how to and didn't seem to understand at out all, that there was far greater power beyond SS(bulky forms and SS2).
And the most likely reason to that, is him being an Earthling/Saiyan hybrid. He isn't as in-tune with his powers as full-blooded Saiyans can be and thus he just doesn't have a clue, what to do.
Hmm..all you are saying is true but there is some conflictions with this. In the series, Gohan was shown to get immensely powerful whenever he was in a state of extreme sentimental dilemma, or rather, simply anger. Neither has Trunks nor Goten has expressed such a breakage in this particular attribute in strength. Yes, they may be stronger and more capable of reaching farther limits than a full-blooded Saiyan (As shown in how easily it took them to turn Super Saiyan and Super Saiyan 3...which now thinking about it makes me feel as if that was only for fanservice/plot device to fill in the plot and to make things go faster...) yet, Gohan's 'hidden power', as we'll call it, was virtually more distinct than just 'gaining' more power (It was solely expressed through him alone). This power remarkably exceeds to an astonishing height unexplainably, from the simple premise of anger. Then, (before the Cell Games and before he could ever control it) it decreases rapidly, either to the power-level to where he was before, or even lower. It was all odd to me especially, whereas I rarely notice anyone taking notice of this with the exception of a few fellow acquaintances of mine.
I wonder if Toriyama was going to do something with his power in the future, but somehow disregarded that idea for undisclosed reasons. Similar as to why he dropped the idea of Gohan being the main character of the series (I know he didn't fit the role too good and the guy needs a break but come on! I wanted to see how the series would be with Gohan as the main! Or at least Vegeta...) =/
And that theoty of yours about Future Gohan is probably correct. I was thinking about that you know!

I just didn't know if it was valid or not so I dismissed it. Now that you have stated what was on my mind priorly before though has kind of reassured me that maybe I was right all along.