Seifer and Squall are brothers

[Raistlin]

It's possible, actually.

I never said it wasn't; I even stated it as a given. My argument is that "possible" does not equate to "plausible."

Do you honestly think that the creators of VIII strictly followed the Occam Razor model when making the game? Just no. It's likely that they didn't follow the model, and if we follow the model... the results would be way inconsisent.

I have no idea what this even means. Occam's Razor is not some model for writing something. It is a tool of logic, which favors theories based on evidence than on baseless assumptions. The more assumptions you have to make, the less reliable and plausible the conclusion.

And moreover, we cannot always apply our realistic common sense to VIII becaue our world and VIII's world are different. So, your claim "use common sense" is not logical.

"Common sense test" was an arbitrary label for the substantive argument afterward, but your response here makes no sense. Yes, VIII is in a fantasy world, but the writers and developers are in this one, which is what the substantive argument addressed.

Because the fan base was heavily biased. When FF8 came out, a lot of people hated it and supported FF7 more. So, when you hate something, you don't look forward into digging itself. Years later, people begin to forget about VIII. Sooo... and Square can invent whatever they want. It's fiction.

Everybody hated FFVIII? No one was examining the plot? Your reasoning is almost as implausible as your conclusion, as you are simply piling on more assumptions.

Yes, Square can do whatever they want. But you have provided no actual evidence to support the conclusion that Square did what you are asserting.