Eeks.

Well, somebody has to say it. Might as well be me.

It requires none of the skills required to shoot a vertical bow.

Hold - You hold a bow with one hand. Holding a crossbow is akin to holding a rifle.

Draw - You draw a bow in the presence of game. You have a limited timeframe with which to capitalize on the drawn bow. You draw the crossbow at the truck, with both hands and one foot...then you are good to go indefinitely.

Anchor - You better anchor with a bow. Your shoulder is the anchor with a crossbow.

Aim - Two planes of reference with a bow. Peer through a scope with a crossbow - just like your gun!

Release - Whether it be fingers or a release, technique matters with a bow. Crossbow - just like a gun (again)

Follow Through - critical with a bow. Irrelevant with a crossbow.

Crossbows require absolutely no archery skill. Sorry if that offends anyone.