For those of us living in California, one of life's great tragedies is that the Pacific ocean is both so close to us, and so poor for actual swimming.
perllib A list of directories in which to look for Perl library files before looking in the standard library and the current directory. If PERL5LIB is defined, PERLLIB is not used.
Atrial fibrillation (AFib) is an irregular heart rhythm that can be episodic/on and off (paroxysmal a fib), or persistent/permanent (chronic AFib). Heart rhythm is how regular/evenly spaced the heart beats occur (think of how regular the beat/rhythm is of a song you dance to).