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Descrição do livro

For more than half a century, computing advanced under a powerful belief: that performance would scale indefinitely. Faster clocks, denser transistors, deeper memory, larger models—each generation promised another exponential leap. The future seemed boundless.

Yet the future arrived without flying cars.

In Wall or Saturation? Physical Constraints on Scaling Exact Computation, the author offers a rigorous and deeply reflective examination of why modern computing has reached not a single limit, but a landscape of saturations shaped by the fundamental laws of physics.

From the speed of light to heat dissipation, from transistor miniaturization to quantum coherence, from cryptographic entropy to artificial intelligence scaling, this book traces the invisible walls that now govern technological progress. It shows how performance is no longer limited primarily by engineering ingenuity, but by thermodynamics, quantum mechanics, information theory, and geometry.

The central thesis is both subtle and profound: as systems scale, exact computation becomes progressively more expensive. Precision gives way to probability. Certainty yields to sufficiency. Universal machines evolve into heterogeneous architectures, and correctness itself becomes conditional.

Through nine tightly connected chapters, the reader explores:

  • The light-velocity wall and the limits of synchronization

  • The end of Moore’s Law and transistor density saturation

  • Frequency plateaus and the thermal ceiling of silicon

  • The illusion of multi-core performance

  • The failure of alternative materials to replace silicon

  • The fragility of large-scale quantum computation

  • The return of analog and approximate computing

  • The entropy wall in brute-force cryptography and Bitcoin

  • The architectural bottlenecks of scaling artificial intelligence


Rather than announcing the end of computing, this book maps its transformation. Progress continues—but not by violating limits. It proceeds by reorganizing around them.

Written for engineers, scientists, and thoughtful readers interested in the future of technology, Wall or Saturation? is both a technical analysis and a philosophical meditation on what computation can become when it finally confronts the structure of reality.

Between wall and saturation lies the future of computing.

Número de páginas :312
Encadernação Wall or Saturation?: Physical Constraints on Scaling Exact Computation (English Edition):Kindle
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