Hmmm... OK, I should have stuck with 'ln -s', I never use ln without the -s.

I did a test and got curious results I'm not sure I understand:

I first created a file called test.txt containing 'blah blah blah'.
I then created a hard link to it with 'ln -s test.txt test2.txt'
I then deleted test2.txt with 'rm test2.txt', and saw that test.txt still existed. (I had expected test.txt to be gone along with test2.txt)
I then created a new hard link with 'ln -s test.txt test3.txt'
I then deleted the original file with 'rm test.txt'
I saw that test.txt was gone, but test3.txt was still there, containing the original 'blah blah blah' content of the previously-deleted test.txt file!

I'm not sure what that's all about. If someone else would like to explain here, it would be most appreciated! :)  I never use hard links, so don't know much about them