And the silly thing is that the rule was based on Latin, where to infinitive is ...

_emacsomancer_ on April 3, 2018 | parent | context | favorite | on: How to Easily Detect Objects with Deep Learning on...

And the silly thing is that the rule was based on Latin, where to infinitive is marked by a (non-separable) suffix, as opposed to English where it's marked by a preposed preposition "to" (though that may be redundantly put).