With the world at the brink of destruction, why wouldn't Gohan use it? Is this theory right or is this another infamous Toriyama plot hole?
[video=youtube;MdN0SYx0LUA]https://www.youtube.com/watch?v=MdN0SYx0LUA&feature=youtu.be[/video]
[video=youtube;MdN0SYx0LUA]https://www.youtube.com/watch?v=MdN0SYx0LUA&feature=youtu.be[/video]