What does 本当たりえる mean


I am playing the eroge Tsui no Sora and have come across a passage containing
this word:

> 当たり前だがノストラダムスの大予言なんて出来の悪い妄想だ。
>
> まともに考えれば小学生にすらわかる事。
>
> だがそんな事は重要じゃない。
>
> [Nostradamus' prophecy is an amateur delusion; even an elementary schooler
> could work it out if they gave it some serious thought; but that isn't
> important]
>
> 重要な事は、それを信じる人間にとってそれが **本当たりえる** 事だ。
>
> "What is important, is that for the people who believe it, it is true"

This is what I believe it should translate to, but even searching 本当たり gets no
results on Google. My vague guess it is combination of 本 + 当たる + える but other
than 当たる and 本当 meaning something along the lines of 'it fits' or 'truth', I
cannot parse it.

Could someone break this down for me please? I can provide more of the text
before the passage if there is still not enough context.




> 「重要な事は、それを信じる人間にとってそれが **本当たりえる** 事だ。」

I am finding two issues with the phrase 「本当たりえる」.

1) the poor, casual word choice of 「本当」 and

2) the substandard reading of 「たりえる」

It would be a considerably more normal and acceptable phrase if:

1) 「本当」 were replaced by a less informal 「真実」 and

2) 「たり **え** る」 by 「たり **う** る」

Using kanji, it is 「足り得る」 meaning "to be equal to", "to be comparable to", "to
be just as good as".

Thus, my own phrase choice would be 「真実たり **う** る」 or 「真実足り得{う}る」.

With these alterations, the sentence in question could more naturally mean:

> "What is important, is the fact that for the people who believe
> (Nostradamus), it is as good as true"




> 「重要な事は、それを信じる人間にとってそれが **本当たりえる** 事だ。」

I am finding two issues with the phrase 「本当たりえる」.

1) the poor, casual word choice of 「本当」 and

2) the substandard reading of 「たりえる」

It would be a considerably more normal and acceptable phrase if:

1) 「本当」 were replaced by a less informal 「真実」 and

2) 「たり **え** る」 by 「たり **う** る」

Using kanji, it is 「足り得る」 meaning "to be equal to", "to be comparable to", "to
be just as good as".

Thus, my own phrase choice would be 「真実たり **う** る」 or 「真実足り得{う}る」.

With these alterations, the sentence in question could more naturally mean:

> "What is important, is the fact that for the people who believe
> (Nostradamus), it is as good as true"

