RE: BTC 2020 Predictions ... Well grounded or simple speculation?

Nice article about bitcoin predictions. But then, I strongly believe that there will be a significant increase in the price of bitcoin. My reason is based on what you mentioned here:

All these predictions are based on the "halving" that will occur this year approximately in May,

Yes, recalling what happened the last time bitcoin halving occurred gives big reason for our optimism. Personally, i will invest little by little until the event occurs.