The method of putting the two boards lies in truth.
nailing them together = Yes
Glueing them = Yes
Nailing and glueing = Yes
Dove tail = Yes
Pins/dowels = Yes
Using rubber bands = No
Your point is that you choose to believe that truth is only relative to your belief. When infact people believed the earth was once flat, which is not true. therefore what people believe doesn't constitute truth.
NIV Isaiah 59:15
Truth is nowhere to be found, and whoever shuns evil becomes a prey. The LORD looked and was displeased that there was no justice.