A crude analogy is like this: Two cameras are pointed towards a wall. Camera #1 is good, but it is blocked by the wall. Camera #2 has a special trick, it does some magic that can look behind the wall.
Now both have resolutions and stuff. But no matter how big the resolution or how long it stares, cam1 is fundamentally blocked by the wall. It can take extremely high res photos of things inside the wall, but it can never see anything behind the wall.
Cam2 could have infinitely higher quality than cam1 — because who knows, there can be 100, 1000, million or a never ending world of things behind that wall that can never be seen or captured by cam1.
Cam1 is Hubble, cam2 is JWST, and the wall is infrared wavelength which is all around us. JWST can peer deeper into the _same area_ of space, and see more things behind the infrared wall, which Hubble can never see.
Now both have resolutions and stuff. But no matter how big the resolution or how long it stares, cam1 is fundamentally blocked by the wall. It can take extremely high res photos of things inside the wall, but it can never see anything behind the wall.
Cam2 could have infinitely higher quality than cam1 — because who knows, there can be 100, 1000, million or a never ending world of things behind that wall that can never be seen or captured by cam1.
Cam1 is Hubble, cam2 is JWST, and the wall is infrared wavelength which is all around us. JWST can peer deeper into the _same area_ of space, and see more things behind the infrared wall, which Hubble can never see.