The factoid about Unicode seems out of place. Those 139 writing systems cover nearly every language that we have evidence of ever being written. If you can find

The factoid about Unicode seems out of place. Those 139 writing systems cover nearly every language that we have evidence of ever being written. If you can find an exception... it'll probably be in the next version of Unicode. Unicode is leading here, not lagging. Also, given that we're counting languages, the majority of languages are unwritten.