「ワイヤレスは常にケーブルに取って代わる」— そう簡単ではない
Wi-Fi 7とBluetooth 5.4は素晴らしいが、速度、遅延、信頼性、電力供給ではケーブルが依然として勝利。
## The Myth
Cables are legacy technology — everything is going wireless.
## Where Wireless Already Won
- **Phone charging**: Qi2/MagSafe is 'good enough' for convenience
- **Audio**: Bluetooth earbuds dominate (AirPods, Galaxy Buds)
- **Home networking**: Wi-Fi 6/7 serves most households
## Where Cables Still Dominate
| Use Case | Wired Advantage |
|---|---|
| 4K@120Hz gaming | Zero latency, guaranteed bandwidth |
| Laptop charging (100W+) | No wireless option at this power |
| NVMe SSD transfer (7 GB/s) | 100× faster than Wi-Fi |
| Competitive gaming | 1ms vs 20ms+ latency |
| Pro audio recording | Zero dropouts, lossless quality |
| Data centers | 400 Gbps Ethernet, massive scale |
## The Likely Future
Cables won't disappear — they'll consolidate. USB-C is becoming the one cable for everything: power, data, video, and audio. The future isn't 'no cables' — it's 'fewer, better cables.'