That works

No if you combine bitters, Scotch, and vermouth you have a Rob Roy because changing the primary component makes a new drink.

Aeration is a known factor in cocktails, it also requires some kind of protein or structure in the liquid to hold onto air for more than a few moments.

Which is all you need to change some components like those found in fresh citrus oils.

Slurping a bit as you sip will impact the taste more than shake/stir (assuming equal dilution, temperature, and clarity)

Shake is almost certainly creating more dilution though. You can’t handwave that away though it is unrelated to “bruising”

The other factor bruise-truthers trot out is Volatile Organic Compounds and the “top notes” evaporating out or oxidizing and I’m sure that would happen if you left a neat glass out on the counter for half an hour,

Im fairly positive that is why we can smell things and I believe your assertion that leaving a glass of gin out for 30 minutes with a much greater exposed surface area will lose taste faster than innthe bottle

It is, but it’s more that forceful oxygenation impairs the perception of certain olfactory compounds changing your impression of the drink. Saying it “bruises” the gun is just easier

Your preference for the demisec is almost certainly related to your cup preference. I did a tasting if box wines 20 years ago. what we realized was the winner was always what was in the Bordeaux glass vs the burgundy because it concentrated the scents more.

If I make a Manhattan with Scotch did I make a Manhattan or did I make a different drink?

Your post makes no sense

Martinis do not involve tequila. That would be a different drink. When you change the single largest ingredient by volume you have a new drink

brut is a designation of residual sugars in solution it is not a brand.

As someone with thirty years at some of the top retailers in the wine business I will eternally disagree with this take. Most great champagnes are brut.

Who uses sweet vermouth in a martini? That’s a different drink.

Martinis are gin or vodka and extra dry vermouth.

It “bruises” the gin as well.

Rich stalkers behave no differently thannothers. I have dealt with this IRL as a customer became fixated on a co-worker.

Not a reflection of real life stalkers though.

Did I mess that up? It’s been decades since I studied Voudon.

That’s a story written by a Mormon chick who had no experience with BDSM

Tell your dad to date him then. If he’s friends with your dad he cannot be your peer and thus is an unsuitable match.

No, they are not. No one cares about your wealth if you are overtly creepy

The Loa aren’t going to be providing a gateway to Nazis. Those folks have their own gods

“though he’s certainly an expert when it comes to usage”

Appeal to authority popping up again? Fry is not an expert in usage. You are ceding him credibility he has not earned.

Your sociolinguist isn’t backing your claim like you think. Go to 2:45 and listen to her talk about how rules only need to be consistent within the dialect. What other Greek words ending in “pus” gets pluralized in English as "i? There aren’t any I can think of so your source might actually prove my point.