While I still wouldn't call myself an expert, during the past two months I have spent a lot of time studying archery. If I'm not an expert yet, I believe I'm pretty sure I'm already at the top 1% of all the people.
Even if I know more than 99% of the people on one subject doesn't make me special. There are countless subjects that you could reach the 1% status almost overnight. For many things just knowing the thing exists could but you into that exclusive group. The real speciality comes from being in 1% of that 1% and even then, you would be in a group of around 80 000 other specialist. And the real world class experts are the 1% of that group.
I believe the first 1% can be achieved in a relatively short amount of time for any subject. The second one will take a lot longer. It might be the infamous 10 000 hours or something like that, but it definitely requires some effort. The final group, the true experts, are those who have dedicated their life to the topic.
While I might already know more than an average hobbyist archer about archery I still suck at the actual shooting. Knowledge doesn't equal skill.