The Reddit thread underscores a generational shift in how pilots build and maintain traffic awareness, with the original poster candidly admitting reliance on ForeFlight's moving-map traffic display to the point of feeling "blind" without it. Before ADS-B In, portable traffic receivers, and integrated EFB traffic overlays became standard, pilots built situational awareness through a combination of ATC radio calls, the "see and avoid" concept mandated by 14 CFR 91.113, structured scanning techniques, and procedural discipline—standard traffic patterns, position reporting on CTAF, and TCAS/TAS systems in higher-end aircraft. General aviation pilots flying VFR in uncontrolled airspace depended heavily on clock-position radio calls ("traffic, Cessna 172 entering downwind runway 27") and visual scanning patterns taught in primary training, without any electronic backup showing nearby aircraft on a screen.
This shift matters significantly to working pilots because it reflects a broader change in the baseline skill set and risk tolerance that technology has introduced into the cockpit. ForeFlight, Garmin Pilot, and integrated avionics suites like the Garmin G1000/G3000 now display ADS-B In traffic directly on primary flight displays or tablets, which has undeniably improved traffic awareness and contributed to safety improvements, particularly in busy terminal areas and non-towered airport patterns. However, flight instructors and safety organizations including the AOPA Air Safety Institute have raised concerns about automation dependency and "screen fixation," where pilots spend excessive head-down time monitoring traffic displays rather than maintaining a visual scan outside the aircraft. The NTSB and FAA have both flagged near-midair collision reports where pilots said they were watching a traffic display rather than looking outside, precisely the paradox the original poster's question surfaces: does more information create more safety, or does it create new failure modes when the technology is degraded, spoofed, unavailable, or simply overtrusted at the expense of see-and-avoid fundamentals.
For airline, Part 135, and business jet operators, this conversation resonates differently but with parallel implications. TCAS II (Traffic Collision Avoidance System) has been standard in transport-category aircraft since the 1990s, giving professional crews decades of experience integrating traffic displays with visual scanning and ATC separation services. Yet even in these more mature systems, human factors research has repeatedly shown that overreliance on any automated aid can erode manual scanning discipline and basic airmanship, a concern equally applicable to the rapid proliferation of ADS-B-based traffic apps in general aviation cockpits over just the past decade. Part 121 carriers have institutionalized CRM and monitoring skills precisely because automation, whether autothrottle, autopilot, or TCAS, can create complacency if not paired with deliberate procedures for cross-checking and maintaining manual proficiency.
The exchange also reflects the compressed timeline of GA cockpit technology adoption. ADS-B Out became mandatory in most controlled U.S. airspace only in January 2020, and ADS-B In traffic display capability in affordable EFBs and portable receivers (Stratus, Sentry, GDL 39/52) has become mainstream only within roughly the last ten to fifteen years. Pilots who trained before this era learned to build a mental traffic picture from radio calls, visual scanning, and airspace structure alone—skills that instructors argue remain essential backup competencies even in a fully-equipped, ADS-B-saturated cockpit, particularly given known limitations of ADS-B In coverage, including non-equipped aircraft, ground-station gaps, and reception artifacts like ghosting or duplicate targets. The broader lesson for pilots at every level, from student pilots to captains, is that traffic displays are a supplemental tool meant to cue and confirm a visual scan, not replace it, and maintaining basic see-and-avoid proficiency remains a core competency regardless of how sophisticated the avionics or EFB traffic overlay becomes.