It is wild how quickly technology is developing. Here's a few examples from the last few decades:

The first hard drive from 1957 (62 years ago), weighing around a ton, being the size of two large fridges, and with 3.75 MB of storage: https://en.wikipedia.org/wiki/History_of_IBM_magnetic_disk_drives#IBM_350
The first commercially available personal computer from 1977 (42 years ago), featuring a 1 MHz CPU and 4 KB of RAM: https://en.wikipedia.org/wiki/Commodore_PET
The first commercially available mobile phone from 1983(36 years ago), featuring 10 hour charge time for 30 minutes of talk time, weighing in at 1.7 pounds: https://en.wikipedia.org/wiki/Motorola_DynaTAC
The first USB flash drive from 1999 (20 years ago), featuring 8MB of storage: https://www.reddit.com/r/vintagecomputing/comments/802zup/8mb_diskonkey_msystems_1999/

The world is getting smaller. More and more business takes place online. Computers, phones, TVs, cars, smart home devices, even kitchen appliances, are connected to the internet. Waiting 3 days and paying stupid exchanges fees on fiat is no longer compatible with the direction the world is going. I can't see it taking 100 years for bitcoin to take over.