What demonstrably true act would cause you to become a Christian? Maybe God coming down to earth,living the perfect life,dying on a Cross,and being raised from the dead.Would that work?
That would work for me as then they’d be irrefutable proof. Odd though that your God supposedly came to Earth and picked a time when there were no cameras, TV, newspapers, internet,instant worldwide news, et al.
Abridged version, prove it.