it's basically that countries that have won most of the modern nobel prizes eat chocolate based on their purchasing power of chocolate, and the older countries that used to dominate basically have no relation between their current chocolate consumption rate and their historic nobel prizes (this is a very bad oversimplification as this graph is just very shite).
i think the graph is just a joke but it's basically constructed to confuse people based on the only two data points everyone cares about, which is the maximum (switzerland) and the minimum (china)
for people wandering why are they talking about 6G when 5G isn't even widely available, 3G standardisation started around 2000, 4G started around 2008, and 5G started around 2015. each generation's standards and documents get finalised in steps and it takes a few years after an standard is released for companies to make products, and it takes time for these to be sold, manufactured and shipped and it'll take more years to build out the infrastructure necessary to be able to support these products.
the trend for a while has been a new generation every decade, but honestly i don't see how anything beyond 6G is practical. people just don't produce and consume that much data even in a complete IoT takeover.