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# My technical belief about Computer Science is to make everything easy and beauti… My technical belief about Computer Science is to make everything easy and beautiful—tiny but efficient. So my research should struggle with confusion, find the boundaries and scaling laws, turn the unclear into the clear, and make truth and efficiency guaranteed.

# PhD must answer the Question: What Is the Field Stuck On Without My Method? One of the most important research questions is: without my method, where exactly is the field stuck? Research may begin with an intuition and produce something impressive. But for others to understand and accept the work, it must identify a recurring problem that existing methods handle poorly. For example, existing tools may struggle to keep a body of research organized and direct readers to the evidence that matters without repeated manual publishing work. The research can then state that problem precisely, propose a new abstraction or method, implement it, and evaluate it systematically.

# A PhD is driving one nail into the wall I increasingly think doing a PhD is like driving one nail into a wall—the wall being the accumulated wall of human knowledge. At first, you may not even see the wall. You do not yet know what counts as a nail, where one could be placed, how the existing nails relate to each other, or which gaps are real. Reading is partly the work of learning to see that surface. Then comes another problem: choosing where *your* nail should go. The value of a nail depends on the wall around it, but its shape also comes from your own judgment. You need enough basic ability to see prior nails, understand how they were driven, and recognize the rules of the game. Yet the reason for choosing this particular nail cannot be borrowed entirely from other people. So the PhD may be less about covering an area than about making one well-founded intervention: seeing the wall, locating a gap, shaping a nail, and being able to explain why it belongs there. This understanding is probably only provisional—a stage-specific view.