This work presents an exploratory theoretical analysis of multiple proposed anti-gravity and propellantless propulsion approaches, including negative mass models, metric engineering concepts, resonance amplification mechanisms, Alcubierre-type spacetime metrics, higher-dimensional frameworks, and several speculative gravity-related hypotheses. The study combines analytical estimates, computational modeling, order-of-magnitude constraints, and engineering feasibility evaluations across multiple independent approaches. Both positive and negative results are included. A complete computational notebook (v1–v20) is provided together with the manuscript for transparency and reproducibility. This work is an independent exploratory preprint developed with AI assistance.It is intended as an honest attempt to examine hypotheses rather than to claim experimental verification. Errors in assumptions, formulations, calculations, or interpretations may remain. Comments, critiques, and independent reviews are welcome:publicgmailfor@gmail.com
Oleksandr Olegovich Kurmanchuk (Sat,) studied this question.