A controlled experiment of metal bending would be one such example for me. I quoted scientists that have done such in this thread. And the hard-core skeptic will always have the 'out' of saying 'cheating must have occurred' and make the game go on forever if they so choose.
We each look at all the facts and judge for ourselves. And in Geller's case microscopic evaluation of the bending shows it occurred in a way that is different from every known method. I'll follow the best analysis of the evidence myself. Others can lock their feet in cement and without the ability to move they will only see the same world.
Why doesn't Geller remind you of the spiritualists at the end of the 19th and start of the 20th centuries? They fooled a lot of people, and maybe a small number of them were self-deceived, but very largely they were just the ancestors of Doris Stokes and friends.
Why didn't the hundreds of millions of dollars the US and Russian military establishments spent on extra-sensory perception in the 1950s and 60s produce a single usable result?
No one has ever returned from an out-of-body or near-death experience with new remote information about reality; claims to the contrary have
all failed close inspection. You'll recall the notices placed on top of cupboards facing upwards in a UK hospital for many years in order to catch the eye of out-of-body travelers with zero success.
Why isn't the cultivation of paranormal powers taught in schools and as part of higher degrees? If it works, how can people still be ambushed at night, not know the moment when their parents or their friends or their children die remotely and unexpectedly? Why do people travel in cars, on planes, boats, trains, that crash?
Why is the large and well-advertised "psychics" industry such transparent nonsense? Why doesn't faith healing stand the close-up look? Why don't wishing wells work? Why aren't prayers answered? Why don't horoscopes or tarot or rolling the dice foretell the future with any greater success than chance?
Why haven't you picked the lotto numbers again and again and are now a billionaire whose investments are foolproof?
Why did NO ONE ever win James Randi's prize?
Why on earth would you want to bend a spoon? What about bending a girder? Or a granite column?
Knowledge of the remote and the future, whether for danger or for opportunity, is of such tremendous survival value that throughout nature evolution would select for it ruthlessly, those with paranormal powers eating and defeating and using their rivals every step of the way.
So we simply don't live in a paranormal world. If we did, the paranormal would provide us with countless useful and live-saving functions that would be integral parts of how we live every day and how our societies work. Instead, nothing.