I've always been very impatient. At age 10 I frankly found life boring, and I can remember age 9 having the awful thought, as it seems now looking back on it, A war! That should liven things up a bit!
Houses mean a creation, something new, a shelter freed from the idea of a cave.
Don't confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The establishment of theory is the very purpose of science.