Golem never demo'd a working product? Is that the level of research you've done on XEL? So little that you don't even understand their main competitor?

XEL demo'd a crappy Bitcoin miner in 2016 and they've been parading that same video around since then.

Looks like they're making tons of progress on GitHub though: https://github.com/elastic-coin/elastic.github.io/graphs/contributors?from=2017-04-09&to=2017-09-12&type=c

Oh wait... it's practically dead.