no point in arguing

There is no point in arguing over a fact.
if it matters, fact-check from agreed-upon sources and close the case.
if it doesn't, drop-it, brush-aside and move-on.

There is no point in arguing over the past.
utterly impossible to grasp full perspective of what really happened.
history is susceptible to exagerration, narratives, biases and delusions.

There is no point in arguing over the unprovable absurds.
Personal traits, boasts, claims that can neither be verified;
nor be exhibited nor be experienced by the doubter are not worth pondering.

The only reason to argue is; inquisitive playfulness.
to mull over the details that may help better comprehention;
to trantiently fire-up someone, to bewilder and deliver a delightful surprise.