This is genius.

Data encoded in base1024 (here using the 1024 safe chars represented by emojis) gives much more efficient storage usage.

16 kB raw data encoded in base64

    ceil(16*1024/3)*4 = 21848 bytes long ~= 21.8kB.

16 kB raw data encoded in base1024

    ceil(16*1024/9)*10 = 18210 bytes long ~= 18.21kB.

So base64 needs about 19.7% more data storage than base1024 and both can be used anywhere utf8 is supported.

Let the baseEmoji revolution begin...