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Weaksauce Weakness: Difference between revisions
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* When it comes to YouTube, some would try to censor certain parts of the video with the annotations, which could be easily turned off with a simple chick. If there's an age restriction on a video, it doesn't often work since one can simply access another of anyone at the legal age or fake their birth date to appear much older.
* High-tech thermal imaging will make living beings immediately obvious even against the best camouflage, but is stopped by ordinary glass
* Green-blue algae, aka cyanobacteria<ref>named so due to having primitive cells (though it's not quite the same as other algae or bacteria) and producing a blue pigment along with chlorophyll (but it's not always prevalent - e.g. some of these give Red Sea its hue, some form infamous fish-killing "red tide") -- they redefine "ancient", and those classifications were made for much younger species</ref>. They probably were here before anything else still alive and outlived most species formed in this time by reproducing faster than anyone who eats them and being resilient enough to spread far and wide. The only way they could find to get even tougher is symbiosis with fungi (as lichens). They thrive in the range of conditions nothing else could approach<ref>Quoth Britannica, "Cyanobacteria flourish in some of the most inhospitable environments known. They can be found in hot springs, in cold lakes underneath 5 m of ice pack, and on the lower surfaces of many rocks in deserts. Cyanobacteria are frequently among the first colonizers of bare rock and soil."</ref> until "recently" some apes stumbled on the combination of tool use and faster-than-genetic exchange of "software" adaptations... then some of the latter took a good look at cyanobacteria and it gave them willies. Having green-blue algae in, say, a rice field, can help a lot, since they fix nitrogen (back when they were young, there was no one else to fix it for them). It's not so good to have excess of these paint a fish tank green, because when light is off they may consume enough of oxygen that by morning your fishies go belly up. Worse still, in a fish pond -- some species are highly toxic and either kill fish or make aquatic plants on which they stuck and animals that eat them too poisonous for consumption by mammals. And, of course, getting rid of them is a problem because most conditions too inhospitable for a we-were-here-before-Cthulhu species kill ''everything else'' first. Yet these near-unstoppable organisms turned out to have an exploitable vulnerability: hydrogen peroxide gets them even in concentrations harmless to the fish and other water-breathing critters.
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