A: Yes, because it means buying a new laptop.
The Thunderbolt protocol is an extension of the PCI-e bus and therefore cannot be converted from USB or any other common interface.
Thunderbolt relies on having a Thunderbolt hardware controller chip, typically built into the motherboard, plus CPU PCI-e lanes dedicated to it, and BIOS support.
For these reasons, it is a non-starter to add Thunderbolt to an existing machine (laptop or desktop) that does not support it.
You can’t go from this –
to this –
in real life. Only in Photoshop
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