It looks more like the photographer stopped watering the microwave-water plant. How long is the microwave-water plant allowed to sit on that windowsill versus the other plant? What nutrients is the author expecting in filtered, boiled water? It's either water or it isn't. There was no checking what particulates remained in either water sample after filtering then after heating method. Is the water even cooled down after boiling, or is the author selectively scalding a growing plant? Perhaps the author already has a canned set of opinions about microwaves and found children to reproduce a crackpot experiment. By the way, did anyone notice that the source link from the article does not resolve to a valid web page, just a web host splash page? Heck, my employer's proxy blocked it as malicious and I had to try it from my tablet.