What happened to the Stock market when cash rate hiked to 20% in 1979-81?

Perhaps reflecting on the past rate hike cycle will help us to understand whatight happen this time if Fed raises rates past the CPI. Requesting senior members to recall what happened to the Stock market in 1979-81 period when rate went from 11% to a peak of 20%? And how do you think that steep rate hike would look like in this modern world with huge Debt to GDP ratio?

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