It's only a matter of academic interest to me now, as you might say, but I thought it would he interesting to know. 正如你可能會說的,這對我現在只不過是一個學術問題罷了,但我曾認為弄懂這個問題會是很有意思的。
A topic, a subject, or an area of academic interest or specialization. 主題,範圍一個題目、課題或學術興趣或專業領域