Blockchain performance issues and limitations

Have you noticed that when we talk about blockchain performance, we usually name approximate numbers? Where do 1000, 100,000 tx per second and other round numbers come from? Why don’t blockchain developers proudly claim 3,423 tx/sec on their websites after each blockchain code update?

The truth is that it’s close to impossible to give an accurate numerical performance estimate of a system that consists of tens and hundreds of computers, especially when they are scattered across the planet and connected by a network. A number of tx/sec will not reflect a huge variety of states of a large decentralized network.

Speaking about performance of any system, blockchain or database with a large number of servers,...