Open access are not always free. I think one of the biggest materials science journal is asking from the authors to pay something in the order of $4,000 to make

Open access are not always free. I think one of the biggest materials science journal is asking from the authors to pay something in the order of $4,000 to make it open access [1]. The trick is to kick out out the for-profit middlemen who are taking advantage of the prestige and impact that various journals built over time, and now they just receive paychecks and free labor. [1] https://authorservices.wiley.com/author-resources/Journal-Authors/open-access/article-publication-charges.html https://authorservices.wiley.com/author-resources/Journal-Au...