While it is true that some components of Albert Einstein's theories have been modified or expanded upon as our scientific understanding has progressed, it does not necessarily mean that faster-than-light travel is possible.
Einstein's theory of special relativity, formulated in 1905, established that the speed of light in a vacuum is an absolute constant and that no object with mass can accelerate to or exceed this speed. This principle has been extensively tested and confirmed through various experiments and observations.
The concept of faster-than-light travel, also known as superluminal travel, would require surpassing the cosmic speed limit set by the speed of light. While there have been occasional claims and hypotheses proposing ways to circumvent this limitation, no conclusive evidence or widely accepted theories supporting the possibility of superluminal travel currently exist.
It is important to note that as our scientific knowledge evolves, theories and models are refined or replaced to better explain the natural world. However, this does not mean that any arbitrary concept becomes plausible. The scientific community rigorously examines and tests new ideas against existing knowledge and empirical evidence.
At present, based on our understanding of the laws of physics, faster-than-light travel remains highly speculative and speculative. It is an active area of research, but there are significant theoretical and practical challenges that need to be addressed before such a feat could be considered possible.