Tag: #docomo-d-barai
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 1 posts
Payment Infrastructure 2026 — From Visa, Mastercard, Stripe, Adyen, and PayPal to Toss Pay, Naver Pay, Kakao Pay, PayPay, LINE Pay, and Rakuten Pay (A Deep Dive into Global, Korean, and Japanese Payment Networks)
Payment infrastructure in 2026 is no longer the story of "a single card." Stripe and Adyen, perched atop the two enormous 4-party networks of Visa and Mastercard, each push $1T+ TPV; the US, EU, and Asia run on different
2026-05-25 · 33 min read #payments#visa-network#mastercard-banknet#amex#unionpay