Here is why I don't think he goes anywhere near what most are thinking.....
The man will be 36 in two weeks......here are the seasons of guys 36 and older who have more than 65 catches in a season......according to our historical Data Dominator
NAME POS YR AGE EXP G REC RECYD YD/REC RECTD FANT PT1 Jimmy Smith wr 2005 36 14 16 70 1023 14.61 6 138.302 Tim Brown wr 2002 36 15 16 81 930 11.48 2 106.903 Jerry Rice wr 2002 40 18 16 92 1211 13.16 7 165.104 Cris Carter wr 2001 36 15 16 73 871 11.93 6 123.505 Jerry Rice wr 2001 39 17 16 83 1139 13.72 9 167.906 Jerry Rice wr 2000 38 16 16 75 805 10.73 7 122.307 Jerry Rice wr 1999 37 15 16 67 830 12.39 5 114.308 Jerry Rice wr 1998 36 14 16 82 1157 14.11 9 169.709 Charlie Joiner wr 1983 36 15 16 65 960 14.77 3 114.00Could it happen, sure, but take out the times Rice did it and look at the previous season's for the four others in Year N-1Smith in 2004 - played in every game, had 74 catches for 1172 yards
Brown in 2001 - played in every game, had 91 catches for 1165 yards
Carter in 2000 - played in every game, had 96 catches, 1200 yards
Joiner in 1982 - played in all nine games, was on pace for 64 catches
Harrison, as noted, missed 11 games. Could he be another Jerry Rice, who in his age 35 season played in two games and came back for several more seasons? I guess he could, but it is very long odds.