I wasn't using the gravity part before, because at that time, gravity was locked, so I technically couldn't. Now it's a little different, gravity is now unlocked; there IS a gravity rune in Beacon of Nihil, and it's aimed at Corban. You can't suddenly go back on your agreement for Myron to unlock that rune, just now while its effects are being used. Also, your character dealt with the beam in its weakest form, when its state changes after 100ft. I'm sure Corban wouldn't be aware that it is hundreds of times more lethal up close.

Aerogel is 98% air, so I see a wind wizard having more leeway here. Your character can surely abuse his power over the 2% with ease, though, cause that's carbon graphene. I looked in to the process of making aerogel, too... it requires rather precise methods depending on what type of aerogel. Formation of the gel. Super-critical drying and extracting of liquids. Graphene also requires precision; Forming a base out of zinc, only to evaporate it later with heat.

Also I was prepared for your argument 'well Corban can quick cast abilities he used before,' ages ago. You gave him a cap on spells he can quick-cast, limiting it to 'the most recent 3 he used.' Since the kinetic barrier that deflected Myron's beam was the first spell you used in our bout, and Corban has definitely used more than 3 since then, he should not receive the quick-cast buff just because he used a spell prior; Else, by that logic, Corban can quick cast any spell he's ever used once.

Let us see what [@Innue] has to say about this debate.

Edit: So Corban can quick-cast two complex spells at the same time, in under a second? Wow... I dunno' if I want to give you that privilege.