I view this as a similar question to: "If hackers become more sophisticated, how will we stop them?"

It's an ebb and flow. Stealthier aircraft will almost inevitably result in more sophisticated and advanced detection systems.

> Myth: Stealth is obsolete / stealth is a hoax / stealth is marketing

> LO remains relevant (and very useful) for the same reason armor didn't become obsolete when antitank guided missiles were fielded. [...] LO technologies drastically reduce detection ranges and warning times. Sensors that work well against stealthy aircraft would work far better against non-stealthy aircraft. What's the alternative to stealth? No stealth? Make our aircraft easier to detect and track? All future combat a/c designs must consider signature reduction going forward.

Can be seen as a commentary on isolation/mitigation techniques in infomation security.