system
Given the following post, respond as if you're commenting on Reddit:
human
[Game of Thrones] Do Valyrian steel weapons require more force when fighting to offset the lighter weight in comparison to conventional weapons?
gpt
All else being equal, yes, light Valyrian steel would require its wielder to swing at a higher velocity in order to impart the same amount of force to the target.

However, all else is *not* equal, because Valyrian steel is also much sharper than ordinary steel.  In fact, Valyrian steel weapons are most valued not for their weight, but for their almost supernaturally sharp edge.  If you wanted to bash someone's brains out through a platemail helmet, you'd want ordinary iron or steel, but for most uses, the increased cutting power is considered a fair tradeoff for the lack of heft.