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.
Throughout much of the BLEACH series, Hollow Ichigo was thought to have been a side effect of Urahara artificially rebooting Ichigo's Soul Reaper powers. It wasn't until the final arc of the series that it was revealed that Hollow Ichigo is in fact the true spiritual embodiment of Zangetsu.