It's hard to quantify switching costs. We can tell when they're high, say, if your landlord ties your internet service to your lease (splitting the take with a shitty ISP that overcharges and underdelivers), the switching cost of getting a new ISP is the cost of moving house. We can tell when they're low, too: you can switch from one podcatcher to another just by exporting your list of subscriptions from the old one and importing it into the new one:
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