Of course, against and in competition with quantum computing

Creating a new form of computing that competes with quantum computing, particularly one based on manipulating quarks and energy, would be a monumental task. Here are some potential considerations and challenges that would need to be addressed:

1. Theoretical Foundation: Quantum computing is based on well-established principles of quantum mechanics. A new form of computing would need a similar theoretical foundation. For quark-based computing, this might involve developing new principles and models based on our understanding of quantum chromodynamics, the theory that describes the behaviour of quarks.
2. Physical Implementation: Quantum computers are extremely challenging to build and operate, requiring near-absolute-zero temperatures and sophisticated error correction techniques. Building a quark-based computer could be even more challenging, given that quarks are never found in isolation and the energy scales involved are enormous.
3. Computational Power and Advantage: To compete with quantum computing, a quark-based computer would need to offer some advantages, such as the ability to solve certain types of problems more efficiently. It's not currently clear what these advantages might be, and it would be a major research task to identify and demonstrate them.
4. Software and Algorithms: Quantum computing has seen significant development in algorithms that can exploit the unique properties of quantum systems for computational advantage. A new form of computing would need similar development in software and algorithms tailored to its specific properties.
5. Scalability and Practicality: Quantum computers are still in the early stages of development, and it's a significant challenge to build large-scale, practical quantum systems. A quark-based computer would face similar or potentially even greater challenges in scalability and practicality.
6. Safety and Ethics: Manipulating quarks and high-energy systems could potentially have unforeseen consequences and risks. Any development in this area would need to carefully consider safety and ethical implications.

As of my knowledge cutoff in September 2021, no such quark-based computing system has been proposed or built. The development of such a system would likely require major advances in several fields, including particle physics, computer science, and engineering. It's also worth noting that it's not currently clear whether such a system would offer advantages over quantum computing or classical computing for practical problems.