How do real-time databases work so fast
I was just testing the database of my app which uses the Firebase real-time database. I made a new data entry into the database, and as soon as I pressed enter the data instantly appeared on my device.
How is this possible so fast, and so quickly. Because the data has to be uploaded from my computer through many servers until it reaches the database servers, and from there it has to travel again through so many nodes to reach the end client device.