Today’s invention is a variable-strength version of Velcro.
The hooks would be as before. The other side would be made of loops which are each joined on one end to another backing layer, as shown.
Pulling this layer downwards would change the length of the loops. Those loops engaged with hoops would then be more strongly retained to their hooks, boosting the strength of the bond.
The spacing between loop layer and its backing layer, might be altered by having eg pneumatic tubes or even piezocrystals placed between them.
This provides a means by which the strength of bond could be made to vary in a controlled way from place to place and as a function of time.