The article discusses the limitations of conventional measurement techniques imposed by quantum mechanics, particularly the Heisenberg uncertainty principle and the Margolus-Levitin theorem. It highlights that these limitations can be surpassed using quantum strategies such as squeezing and entanglement. The authors review techniques to enhance measurement precision, including interferometry, parameter estimation, and applications in quantum technology. They also explore the quantum limits to measuring spacetime geometry, derived from the Margolus-Levitin theorem and the requirement that a region not form a black hole. The article concludes by emphasizing the potential of quantum technologies to improve measurement accuracy and their implications for fundamental physics.The article discusses the limitations of conventional measurement techniques imposed by quantum mechanics, particularly the Heisenberg uncertainty principle and the Margolus-Levitin theorem. It highlights that these limitations can be surpassed using quantum strategies such as squeezing and entanglement. The authors review techniques to enhance measurement precision, including interferometry, parameter estimation, and applications in quantum technology. They also explore the quantum limits to measuring spacetime geometry, derived from the Margolus-Levitin theorem and the requirement that a region not form a black hole. The article concludes by emphasizing the potential of quantum technologies to improve measurement accuracy and their implications for fundamental physics.