Post Modern Irony isn’t for all.
i actually think there are closer to 5 millionthe article you posted said 375K people was the record # of people at one time on Ibiza and Formentera. not close to 1mm and more in line with what makes sense to me.
I had said 800K people at one time on Ibiza was hard to believe and turns out the all time record # is less than half of that.
Subtract Formentera and look at the average daily summer # its probable more like 200-250K max on the island in the summer outside of August.