[simiones]

The world used to run on exactly this type of currency: the gold standard. We had the gold standard during both World Wars, during colonialism, during slavery and every other atrocity in human history.

And of course inflation can still happen if the world were to run on bitcoin. If cost or supply of many goods are directly impacted (e.g. because of problems with oil supply, which underlies production costs of much of the goods and even services in the economy), then inflation can occur even with a fixed monetary supply.

Also note, the problem is not that there are more of us than stuff to sustain us. The modern economy produces more than enough to fulfill at least the base needs of each and every person on Earth. The problem is that many people believe that they are owed much more than others, either personally, organizationally, or nationally. Most likely wars over resources wouldn't go away to any significant extent even if the world's poorest 5 billion people were to drop dead tomorrow (well, once new soldiers are manufactured).