In this case it was a leaking cooling tube leaking the water used as a coolant.

This doesn't seem quite correct:

"During inflation the speed of light (C for ease of conversation here) was obviously higher because C is the fastest anything can travel in the universe."

While no information can travel faster than C, inflation of the universe doesn't necessarily count for that because no information is being transferred faster than light. Indeed we're pretty sure that in the modern universe it is expanding at a rate such that some points are moving away from each other faster than light.

Netflix says that in the first three weeks there were 150 million different households that streamed Wednesday.

There are 1,814,400 seconds in three weeks. If viewings were equally spread out (in reality they'd be more clumped) that means 83 households had to start watching each second, so there were definitely a bunch of people watching at the same time as others.

What processes have eroded the deposited layers away since then, and why is it more eroded in the center of the crater?

"Besides the size of the aircraft" is a hell of a thing to dismiss.

A fully loaded B-25 can carry 670 gallons of fuel. A 767 carries over 20,000 gallons.

Yeah but the people and equipment to gather it were already there in Boston. Are you factoring in the time and cost to transport people down to and back from Antarctica, house them, and the higher wages they'd need?

Someone elsewhere in the comments used the analogy of modern supply chains and it's entirely accurate. It's the same reason it's usually cheaper to buy a household item produced on the other side of the planet than one produced locally.

Sounds like a whole lot of costs, when the alternative is to buy it from a company in Boston already producing ice and just pay for a few extra weeks of shipping time.