How to use Migration Assistant with a Thunderbolt connection

Migration Assistant in macOS has matured over many years from a fragile tool that often failed in moving your identity—your apps, files, preferences, and other data—from one Mac to another. It’s now quite reliable, and I’ve used it several times in recent years without fail. But one pain point relates to how fast files transfer. Ideally, you want to connect two Macs with a Thunderbolt 3 or 4 cable. A USB-C plug doesn’t ensure it’s Thunderbolt—some USB 3.1 and

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