“And even so, we do have empirical evidence that homo sapiens”
You’re trying to have it both ways by equating “homo sapiens [at times] don’t suffer consistent illusions”, which is obviously true since we don’t all have the same experiences, and “homo sapiens [never suffer] consistent illusions” which is equally obviously false because of the evidence you alluded to in the second part.
If Homo Sapiens don’t always suffer consistent illusions that leaves open the possibility they sometimes perceive reality more or less correctly.
Also, if there were no possibility of some “veridical perception” there would be no way to gather evidence that some perception is illusory. That’s a good place to look. Demonstrations of consistent illusion must include some new mode of perception that reason dictates is closer to reality.
“And even so, we do have empirical evidence that homo sapiens”
You’re trying to have it both ways by equating “homo sapiens [at times] don’t suffer consistent illusions”, which is obviously true since we don’t all have the same experiences, and “homo sapiens [never suffer] consistent illusions” which is equally obviously false because of the evidence you alluded to in the second part.
That’s irrelevant to the question of whether perceptions like spacetime are illusory, which was the actual point of the conversation.
If Homo Sapiens don’t always suffer consistent illusions that leaves open the possibility they sometimes perceive reality more or less correctly.
Also, if there were no possibility of some “veridical perception” there would be no way to gather evidence that some perception is illusory. That’s a good place to look. Demonstrations of consistent illusion must include some new mode of perception that reason dictates is closer to reality.