TAT-7 which was in operation in 1985 when I cited the £2 per minute price carried 4000 simultaneous calls, ie up to £8000 per minute

Its successor TAT-8 carried ten times as many calls a few years later, industry professionals opined that there was likely no demand for so many transatlantic calls and so it would never be full. Less than two years later TAT-8 capacity maxed out and TAT-9 was already being planned.

Today lots of people have home Internet service significantly faster than all three of these transatlantic cables put together.