Of 21 experts to whom I sent my June 28 article, 13 participated in an e-mail discussion which the ARF has summarized at the link below called ARF discussion. Most of the 13 agree with the statement, "The evidence that a duplication estimation technique closely agrees with an empirical canonical set is essential and needs regular validation."
Most Experts Agree That Audience Duplication Needs Regular Evidence of Empirical Grounding
![Most Experts Agree That Audience Duplication Needs Regular Evidence of Empirical Grounding](/media/articles/InTermsOfRoi_logo_rectangle_XHANo0l.png.550x380_q85_box-91%2C55%2C1171%2C805_crop.png.webp)