Mire que la investigación personal, a veces, puede llevar hacia conclusiones inesperadas, hablo por propia experiencia...

Maybe not the most important topic for our times and saving souls...

I understand what you mean. But, if we were really facing a hoax of this caliber, as I think, the issue would necessarily be important. Because, in my opinion, the intention is to make the human being feel totally disoriented in a chaotic universe, without up or down, without stability of any kind, in constant expansion, but destined finally to become extinct, emerged from a "big bang" impersonal and meaningless, with the human being brought into existence by the chance of "evolution", and being of utter insignificance in a meaningless cosmos. This is the subliminal message people receive through the modern, "scientific" worldview of the universe. And this is in the antipodes of what emerges from the biblical account of Creation...

When you want someone to understand Mathematics, you don't start with something complex and which is of no use at all for the peoples to whom you explain. I don't think by the way that question is important nor clear in order to be studied. The question is about the souls and to know the Catholic doctrine, who cares is the earth wouldn't be round...

That's your opinion, and I respect it. I exposed mine in the previous comment, in which I tried to explain the reason why I consider the topic to be relevant. In addition, one thing does not exclude the other: Catholic doctrine can be exposed without prejudice to also addressing other topics of historical or cultural interest. With the addition, as I explained before, that this topic, indirectly, concerns the spiritual life of the people, since it distances it from the biblical conception of Creation...