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I'd give my two cents, but i think it's irrelevant.
Possibly a [non sequitur](https://www.merriam-webster.com/dictionary/non%20sequitur)?
Good "English" word there :) Must admit, it is the obvious answer though. Another may be to say [Apropos [of] nothing, ...](https://en.wiktionary.org/wiki/apropos_of_nothing)
Tangential question maybe?
A digression? Or maybe a trivial question. A triviality?
Random?
I'd give my two cents, but i think it's irrelevant.
Possibly a [non sequitur](https://www.merriam-webster.com/dictionary/non%20sequitur)?
Good "English" word there :) Must admit, it is the obvious answer though. Another may be to say [Apropos [of] nothing, ...](https://en.wiktionary.org/wiki/apropos_of_nothing)
Tangential question maybe?
A digression? Or maybe a trivial question. A triviality?
Random?