Interviewer was ignorant of the ecosystem of other companies in the same space as his. Was totally focused on a very narrow set of technical issues that he had encountered in his own very limited career and unable to accept or even understand higher level business concepts that were outside his experience.Said he would set up a follow on in person interview...never heard another word from him or anyone else. Very unprofessional and arrogant and at the same time, quite dull. Virtually impossible to engage this person in a two way conversation.