Is X3D really just VRML-Lite?
No. The notion of a stripped down version of VRML, affectionately termed VRMLLite, was discussed for a while on the VRML mailing list. The idea was to reduce the bloat in current browsers by stripping away non essential functionality. X3D does not strip any functionality – the notion of a Core is perhaps similar to the concept of VRMLLite, but the whole idea of the X3D Core is that it can be extended to prove further functionality.