The first command flushes the current chains or sets the firewall defaults to their primary state, which is to accept all packets coming in and going out. The next three commands turn the default policy for each of the three predefined chains (input, output, and forward) to DENY, which denies all packets coming in and going out. These blocks can execute commands on the game servers, and quickly became a community favorite with custom adventure maps, gamemodes, and many other great use cases. Many adventure maps nowadays require command blocks to be enabled so they can function correctly.
When sodium loses an electron what happens to the size of the blue atom