At true size, Canada is about 5.3× the size of Indonesia. On the old 1569 Mercator map the same two appear about 21.6× apart — the old map exaggerates their difference by a factor of 4.1×.
It is a latitude illusion: Canada sits near 60°, where Mercator multiplies area by about 4.1×, while Indonesia lies near 2°, inflated only about 1×. Equal Earth removes that latitude tax, and the pair settles at its honest 5.3×.