Yes it's hard to come up with a different capital than I unless you somehow can see into the future and foresee the advent of computers, which the Turkish alpha

Yes it's hard to come up with a different capital than I unless you somehow can see into the future and foresee the advent of computers, which the Turkish alphabet reform predates. Of course the latin capital I is dotless because originally the lowercase latin "i" was also dotless. The dot has been added later to make text more legible.