

10 shannons, that is, 10 bits, each with 50% probability would be equivalent to the amount of information gained from observing an event with 1/1024 chance of occurring, not 1/10. Thats because this unit gets combined multiplicatively. The wikipedia article mentions that if there are 8 possible events with equal probability, the information content would be 3 shannons.
Nuh-uh! You can configure Minecraft to use all that memory to run buttery smooth. Just make sure to not play longer than 15 minutes so you don’t get the mother-of-god lagspike when the garbage collector finally runs.