Interestingly, currently 4% of all transactions are one input - one output P2PKH transactions just above the low and high estimates. https://mempool.observer/monitor/?filter=RT00JmM9MCZkPTImYj0wJmE9MCZ2aT0xJms9MiZnaT0xJnY9MiZuPTImZz0yJnI9MCZzPTAmdD0wJnE9MCZtPTAmcD0wJm89MCZ6PTAmUj0wJmZpPTEmZj0y

https://i.imgur.com/WeHKgVw.png

Wonder what those are...