Let's write numbers backwards[20 000]

18416

You have already written a message in the last 30 seconds. You can write the next message in 5 seconds....yeah

18415

18414

I always experience the same problem
the worst is when I wait for some time purposely before pressing "submit" and then see something like "you can write the next message in 2 seconds"

18412

18410000000......

18408

18406

18404

18400

18398