Modern physics is at a crossroads because while past equations like E=mc2 were one-liners, the new equations of string theory fill pages, if not books. If science gathers knowledge from the tree of nature, the low-hanging fruit of single-line equations have all been picked. The era of equations is over so better tools like computer simulation are needed but while simple equations can be deduced from patterns in data, simulations need a valid model of what is being simulated. Current physics is stagnating because it chose the desert of physical realism over a future based on quantum realism.
QR2.5.1 The End of Physics?
QR2.5.2. Grounded Physics
QR2.5.3. A New Perspective
QR2.5.4. The Quantum Model