It does seem that most of the prominent entrepreneurs of our age are focused on tech. Before that it was finance, and going back further, steel, oil and railroad. In the future, I expect to see more bioengineering.
Those things will corelate, because the 100xers aren't 100x because they can make anything happen, they are 100x because they choose the right battles and have the energy, know how, motivation and connections to deliver on it.
So I think the booming markets and the 100x entrepreneurs will almost always align.