Law of cobblestones
The law of cobblestones is a scientific principle applicable to minetest which gives exceptions to the widely-accepted law of conservation of mass from conventional physics. The law specifically states that:
- While most mass (that is, nodes) cannot be created from nothing, cobblestone is an exception.
The corollary to this exception is that any material which can be derived from cobblestone can also be created from nothing. The science of creating various materials from cobblestone is well-established.
Although the law of cobblestones provides a useful exception given the finite size of minetest worlds, it is not widely applied because of the ease of obtaining cobblestone from the finite supply of naturally-generated stone found in the world.
It is possible that one day a sufficiently-played minetest map might exhaust its natural supply of cobblestone as the earth's crust from 0 to -32910 metres is completely dug up, however this is not likely to happen in practice. Indeed, even if LinuxForks were to last far enough into the future for the limited supply of cobblestone to become an issue, the underground world could be wholly or partially reset by 👑 gabriel. The abundance of buildable land on the earth's surface at such a point into the future is questionable as well, as urban sprawl continues unabated around LinuxForks with mostly vain city projects which inevitably fall into decay as the original players leave, either for other servers, other games or just to different areas of the world.
Other exceptions to conservation of mass
- The law of popsicles: Wood can be created by freezing juice in a freezer and eating the resulting popiscles. Purely in terms of minetest you might say that since the old popsicle item was destroy and the stick replaced it, there is still the same amount of items in the game, and considering it transmutation instead, however we know that eating destroys mass (the mass of the food), since minetest people don't have excretory systems.
- Farming: the main application of farming is food, which is later deleted, and typically only produced in the amount players need, so is self-regulating. However, farming also produces products that will be permanent such as bags, hemp rope and can even blocks such as chocolate, cheese and honey. Forestry (the farming of trees) is of course a major exception as well.
- Destroying trains: destroying some trains gives the train back, which preserves mass; but other trains drop iron blocks, usually less than what was needed to make them, resulting in a net loss of mass. This loss is also permanent since there is no way of creating more iron.