marx; akrai is a common word. It means here and there, casually. Akrai be’alma. it’s opposite is keva. it means you can’t make it fixed.
Words have meanings. If this were any other discussion, the meaning wouldn’t be a controversy. Here lies a yatzer hora for knowledge for its own sake, or curiosity, or both. The Tanya has very harsh words about someone who learns secular studies for non-Torah purposes; when learning it, one must ask themselves….do I need this for torah, or is it to satisfy my taavos?