Why do C++17 structured bindings not use { }?

Question

I found the original proposal for *C++ structured bindings here. It proposes a way to easily bind multiple return values, i.e.:

auto {a, b} = minmax(data);
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Answer 1

The change from {} to [] occurred after Jacksonville and was made in response to comments from that meeting. This is detailed in p0144r2, which states: "because it is more visually distinct from the existing syntax for declaring multiple variables of the same type."

It appears that the NB comments requesting a change to the original usage of {} did not increase consensus in the Nov 2016 meetings, leaving the [] usage intact. At least until the Spring meeting.