In an industry famous for its ridiculous acronyms, ADS-B stands out for being uniquely confusing. Lots of pilots use the term, but not everyone really knows what it means. And who can blame them - it’s incredibly complicated. So what is ADS-B? Why should you care about it? Can you just ignore it? No. While ADS-B may be confusing, it’s probably the most important technological change you will have to deal with as a pilot over the next two decades. So it's worth the effort to learn this new language.