The ability to precisely measure attosecond delays in core-level photoionization opens up a wide range of potential applications beyond revealing molecular dynamics. One significant application is in the field of ultrafast spectroscopy, where attosecond X-ray techniques can be utilized to investigate electronic and structural dynamics in a variety of materials, including solids, liquids, and gases. These measurements can provide valuable insights into fundamental processes such as charge transfer, energy relaxation, and electronic coherence on ultrafast timescales. Moreover, the precise control of attosecond delays can enable the manipulation of chemical reactions, the design of new materials with tailored properties, and the development of ultrafast electronic devices. Additionally, attosecond X-ray experiments can find applications in fields such as quantum information processing, nanotechnology, and materials science, where understanding and controlling ultrafast processes are crucial for advancing technological innovations. By harnessing the capabilities of attosecond X-ray spectroscopy, researchers can explore new frontiers in ultrafast science and technology, leading to groundbreaking discoveries and applications in various disciplines.