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@idlejohn -I wasn’t comparing the two top ratios but the top of the 1×11 with the next to top of the 2×10 which is very close. The top ratio of the 2×10 is, as you say, 94.8 It’s still only one extra ratio though.
Why would you compare the small chainring/small cog ratio on a 2x when nobody uses that combination?
I wasn't comparing the 22/11 with anything. I compared the 22/36 and the 30/42 at one end and the 30/11 and both the 36/13 and 36/11 at the other end. I noted the 22/11 as part of the overall sequence because if I hadn't some bright* spark would say I hadn't covered the entire set of combinations!
I wrote:
At the top end on the 1x 30/11 gives a ratio of 2.73, the 2x has ratios of 2.77 and 3.27 better than that.
At the bottom end the 1x has 30/42 = 0.71 whereas the 2x has 0.69 and 0.61 lower.
* with the light turned off 😒
Other advantages of 2x -
9 speed cassettes are half the price of 11 speed for the same range. That 46t ring must be made from unicorn horn.
more weight, yes, but lowers centre of gravity.
weighs less than a dropper.
Disadvantages - death throes were a shotgun approach to standards. My Pitch is supposedly a shimano E2 mount but the holes are clearly for a Sram S1 mount. Direct mount being in name only as you need an adaptor for anything else.
Lowers the CoG ? Is that even measurable ? If you add weight you probably negate more than the benefits of the lower CoG, but not sure tbh.