The phrase "this involves" is correct and is often used in written English. It is typically used when introducing the details of a plan, action, or situation. Example: "In order to develop a successful marketing campaign, this involves carefully researching the target audience."
This involves great hardship.
This involves some preparation.
This involves some selection.
This involves:.
This involves being honest.
And this involves SEX.
But this involves two risks.
This involves trust.
This involves moving pictures.
This involves owning authorship.
Yet this involves huge risks.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com