In other words, if you have to know 3 facts about a domain, it doesn't have a steep learning curve; if you need to know 1000 facts it does. Time is irrelevant in this context. The correct axis should be facts to know and effectiveness to reason / act in domain.
The origin of the name Ichigo is Japanese. This is the culture in which the name originated, or in the case of a word, the language. Ichigo is the Japanese word for strawberry, but the name can also mean one/best guardian as a male name from ichi one and go guardian.. Also the Japanese word for strawberry which would be the feminine form. Ichigo iis a name in manga and anime in titles like Bleach and Tokyo Mew Mew.
Like Ichigo, Hollow Ichigo has an astounding growth rate. He gains any power Ichigo does, evidenced by his use of Bankai. He could use the black Getsuga Tensho before Ichigo, despite both learning Bankai around the same time. His own Getsuga Tensho is incomparably stronger than Ichigo's.