纯属假设的问题用英语怎么说？

纯属假设的问题

...a purely hypothetical question.

purely

adv. 完全地，十足地，纯粹地，纯洁地，贞淑地；

例句
Such is the size of the problem that these arguments are purely academic.
问题的实情在于这些论点纯属空谈。

hypothetical

adj. 假设的，假定的，有前提的，爱猜想的，假想；

例句
Let's look at a hypothetical situation in which Carol, a recovering cocaine addict, gets invited to a party.
让我们假设这样一种情景，卡萝尔，一位正在康复的可卡因成瘾者，应邀去参加一个聚会。

question

n. 问题，疑问，怀疑，议题；vt. 问（某人）问题，对（某事物）表示[感到]怀疑；

例句
...certain assumptions which are accepted without question as absolute truths.
某些未经质疑就被作为绝对真理而全盘接受的假设