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Just in case people wonder how ipv6 is doing: https://www.google.com/intl/en/ipv6/statistics.html

Interesting, it's gained about 10% usage in the last year (~10% to 18-22% globally). Not bad!

Eyeballing that chart though it seems to have slowed down in the last half of the year. Also interesting the pattern of slowed down adoption in the beginning of each. I wonder what's up with that.

Was thinking the same, but more eyeballing also makes me think there's always a slowdown or even dip in Jan/Feb. That seems even stranger.

Maybe people buying new IPv6-capable devices at the end of the year during the holidays and then fewer buying them over the next few months?

It's also interesting to note the difference between weekend and weekday IPv6 traffic (~18% vs ~20%). Businesses are apparently far behind consumers in adopting it.

~10% to ~20% is closer to 100% gain than 10% gain. From 1 in 10 to 2 in 10 people is a doubling of people!

This is why percentage is a bad measure when it can represent two things (percentage or percentage-points).

I like log-odds as a scale to use to represent adoption, going from negative infinity with no adoption through zero (at 50%) to positive infinity at full adoption, but with a typical range of -2 (~1%) to +2 (~99%) when using base e. (Although you can use any base).

By that scale it went from -0.95 to -0.65.

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