True in many cases of both chemistry and physics, but not necessarily so in LENR.
There have been cases with gas-loaded systems in which the LENR reaction HAS STARTED SPONTANEOUSLY without a long induction phase or high energy startup conditions. I believe that was done by either Miles or Miley (too many sound-alike names in the LENR business) in a zirconia-palladium-deuterium matrix.
And the induction time has been getting shorter and shorter as knowledge has been gained, even for electrolysis-based systems. Co-deposition of palladium and deuterium has sped things up a lot. and increased the percentage of successful (excess heat generating) runs.
Read Beaudette's book yet???
Actually, I was talking about the Eact needed to get Mr. outofsalt going. I wasn't referring to LENR.
No, I did not read that book. I read the reviews of it, and the description. I was not convinced that I need to do any further reading on it.