According to @QCompounding, Airbus (AIR.PA) and Boeing (BA) build nearly every large passenger jet worldwide, reflecting a durable duopoly in commercial aviation. Source: @QCompounding on X, Dec 22, 2025. According to @QCompounding, the barriers to entry are sky-high due to regulation, safety standards, and technology, which is a key factor traders watch when assessing competitive risk and long-cycle exposure for AIR.PA and BA. Source: @QCompounding on X, Dec 22, 2025. The post does not reference digital assets, so no direct crypto market impact is indicated by the source. Source: @QCompounding on X, Dec 22, 2025.