Seeing what
$QS and
$PLUG are up to had me add them to my watch list. Will be doing more DD but was thoroughly impressed.
Edge Computing is another that I think will be revolutionary and hope my
$CRM will be a big player in the space.
Lastly, whoever figures out how to mass produce graphene cheaply and effectively may just change the world. It conducts electricity better than copper, is 200x stronger than steel and 1/6th the weight. Amazing what humans are capable of coming up with!