Deletion of Portable hole

Comment: Per failure of .  is not a sufficient reason to keep an article. This is great for TVTropes, but Wikipedia is not TVTropes
Stance: delete
Cited policy: Wikipedia:Notability (WP:GNG||WP:ITEXISTS)

Comment: or '''merge''' per above comments since there are  to retain, per  and 
Stance: keep
Cited policy: Wikipedia:Reliable sources (WP:RS||WP:PRESERVE||WP:ATD)