Before sharing the $63 estimate for a quantum-safe Bitcoin transaction, it is highly recommended to review the underlying methodology. As @StarkWareLtd clearly explains, this amount is purely a theoretical model rather than an actual invoice, meaning no real transactions are ever generated. Furthermore, while the performance benchmarks were executed using RTX 4090s, the overall cost projection assumes a hypothetical network consisting of 100 RTX 3090s.

https://thedefiant.io/news/blockchains/starkware-challenge-cuts-quantum-safe-bitcoin-compute-estimate-by-79