Problem: I’ve used a super secret mind trick to hide this file. Maybe something lies in /problems/where-is-the-file_6_8eae99761e71a8a21d3b82ac6cf2a7d0.
Solution: cd /problems/where-is-the-file_6_8eae99761e71a8a21d3b82ac6cf2a7d0
If you ran regular ls you’d see nothing but run it as ls -a to find the file.
cat .cant_see_me
Flag: picoCTF{w3ll_that_d1dnt_w0RK_a88d16e4}